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196
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on "Resistor"

Resistor manufacture and optimization

9 pages
(2250 words)

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...Resistor s back the early 1920s during the period they were the main technology separating the 1920s radio with the later designs. Carbon resistors were the first categories of resistors and used regularly due to the thermal performance of the resistor. Compared to the Wire Wound resistor, carbon resistors could be used in the AC circuit due to their performance. Over time, changes in technology have given rise to new and efficient types of resistors. There are two categories of resistors, variable resistor and fixed resistor. These resistors are used in circuits as passive components. Passive components are components with the inability to amplify or increase voltages, signals... Report Introduction...

Resistor manufacture and optimization

10 pages
(2500 words)

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...Resistor Manufacture and Optimization Abdlkareem Abuauref Engineering Science II: Electrical Engineering Swansea Metropolitan Dr. P. Charlton
March 21, 2012
Introduction
The following is an analysis of resistors, their manufacture and optimization. The paper uses literature review to create understanding of the current resistor types as well as the various manufacturing techniques in the first part of the discussion. The second part of the discussion involves analysis of resistor manufacturing output. Analyses of resistor manufacture output involves understanding of two sets of data for two identical...

Resistor

4 pages
(1000 words)

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...Lab Report The aim of the experiment was to determine the different characteristics ofa voltage and series circuit in regard to current and voltage of the circuits. The experiment was set up so as to determine whether and how different is the voltage and current in a parallel and a series circuit. The aim was achieved by setting up a parallel circuit and a series circuit using the same voltage sources, then taking measurements of the current and voltage in the two circuits. It was established that indeed there is a difference in the characteristics of a voltage and series circuit in regard to current and voltage of the circuits. Current is constant in a series circuit while voltage... Report The aim of...

Paraphrasing

1 pages
(250 words)

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...resistor network analysis. Additionally... , the experiment will use Wheatstone bridge networks and two resistors, the photo-call and the potentiometer.
Number 2
This experiment seeks to offer lab experience with USB-1208FS DAQ in resistor network analysis. To achieve this, the experiment will rely on Wheatstone bridge networks and two resistors, the photo-call and the potentiometer. Consequently, the DAQ, photo-call, resistors, and the potentiometer construct two circuits that apply in this experiment. A resistor connected in series with Oscilloscope and a photo-resistor defines the initial...

CEET(Electronics& electricity)

1 pages
(250 words)

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...resistor is connected across the secondary windings, what is the voltage across the resistor, and how much current is flowing through the resistor?
Solution
Turn’s ratio is 20:1
Primary voltage =120 V
Resistance in the secondary coil=100Ω
Since it is an ideal transformer, its efficiency=100%
In this scenario, the problem can be solved by applying the equation;
The current flowing through the resistor will be thus;
Q7. Calculate the value of an equivalent inductor that can be used to replace the three parallel inductors shown.
Solution
The above... CEET (Electronics and electri Q6. An ideal transformer has a primary to secondary turn’s ratio of 20 If 120 V is applied to the primary, and a 100 ohm...

Paraphrasing

3 pages
(750 words)

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...resistor Aim: the circuit should be built after calculations and results are taken and compared with multisim
Equipment: 1) Resistor
2) Power Supply (DC)
3) Bread Board (Proto board)
4) Resistors
Results:
To be added by the client
Introduction:
This lab aims to consider the division of voltage in a series circuit after doing three diagrams.
Procedure:
Three circuits were built which were as follows
1. First circuit had two resistors.
2. Second resistor had three resistors.
3. The third circuit had 4 resistors.
The first circuit showed equal division of voltage between the two resistors added. Both resistors... Engineering and Construction Introduction: Building a grounded 12v power circuit with...

Electrical and Electronic principles

2 pages
(500 words)

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...resistor 100ohms, VR=(R×VIN)/(R+L) (100*5)/(100+8.33)= 4.6155 volts
The current value recorded when the inductor is fully charged is given by I= = = 0.0197A
(c). Time constant of the circuit was given by Re/Le where Re=(R1+R2)=(100+100)Ohms which gives 200Ohms
1/Le=1/L1+ 1/L2 + 1/Ln =1/10 + 1/50. Thus Le= 8.33H t=8.33/200 =0.0417secs
For the voltage response the curve is an exponential decay while for the current it’s an exponential growth with time.
2. Total inductance LT. Calculate the first branch, let it be LA, (inductor... Circuit behavior analysis The voltage across the inductor 8.33H, VL=(L×VIN R+L) Where Vin =5volts R=100ohms L=8.33H, (5*8.33)/(100+8.33)= 0.3845volts
The voltage across the r...

Electronic Laboratory Practise

2 pages
(500 words)

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...Resistors in series have the same current flowing through them while the total sum of the voltage... Electronic Laboratory practice Electronic Laboratory practice In this report, a digital multimeter was used in taking current and resistance readings respectively. The oscilloscope was also used to determine voltage and frequency measurements. Some waveforms of AC superimposed on DC were also shown using the oscilloscope. It was noted that useful electronic applications such as a potential divider and current divider were also demonstrated. In addition, each measurement was accompanied with accuracy measurements to account for deviations from expected values.
Table of Contents
Abstract 2
1.0 Introduction 4...

Audio Crossover Circuits

8 pages
(2000 words)

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...resistors, capacitors as well as inductors. The passive components are used in conditioning the signal to obtain a specific result. The components are useful in the analysis and control of the signal. There are a number of designs of the circuits that is sued to condition the audio output of the circuits. Different configurations of the first order circuits have different results in terms of signal conditioning. In the audio crossover circuits, the circuits are specific to a selected frequency range, thereby introducing the elements of damping... ? AUDIO CROSSOVER CIRCUITS Lecturer: Address: AUDIO CROSSOVER CIRCUITS Introduction The audio cross over circuit is used with speakers in the audio vocal range. ...

EMF and Internal Resistance Lab Report

6 pages
(1500 words)

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...resistor of a lower value. The resistor value was gradually increased to achieve different values of the terminal voltages and the current. A graph of best fit is plotted for terminal voltage against current. The results from the graph are then used to determine the electromotive force of the cell and its internal resistance. Further analysis revealed more features of the dry cell in a circuit.
Aim
To come... The Internal Resistance of a Cell and EMF location The report below is of determining some features of the dry cell including the electromotive force and internal resistance of the cell. The current values together with the terminal voltage are recorded after connecting the cell in series with a...

Memsitors, the new kid on the block

4 pages
(1000 words)

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...resistor, the transistor and the capacitor are well known in the electronic field. In 1971 an Engineer in the university of California Berkeley, predicted that there should be a fourth element; a memory resistor, or memristor though no one seemed aware of it or how... ? Memristors: the new kid on the block Presented Memristors: the new kid on the block In the current changing business environment businesses are being faced with highly challenging environment in which the global competitiveness is at its highest peak. The quest for businesses to be competitive and remain sustainable has led to embracement and recognition of efficient use of information technology to enhance profitability in a highly...

Kirchhoff's Laws

1 pages
(250 words)

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...resistor is rated maximum of 250 mW. If the circuit allows the value to be exceeded, too much heating will be generated, and this situation may lead to other effects.
2. Increase in the values of R2 and Rx and their equal values effects. What big change occurs in the circuit now? Give a listing of resistance and current values and compare them to the default circuit
R1
Rx... Kirchhoffs Laws Kirchhoffs Laws The values of current and resistance in the circuit. What are these values? R1 Rx R2 R3 Total E(Volts)
9
9
9
9
9
I (Amps)
0.9m
0.1m
4.5m
9m
14.5m
R (Ohms)
10k
0.2k
2k
1k
14k
As the current flows through the circuit, across the negative (-) cell terminal, some of the current splits to R2 and Rx. Each re...

Physics Problems

4 pages
(1000 words)

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...resistors are connected in parallel, their terminals are connected across the voltage source, and the voltage drop across each terminal is the same. But, if the value of resistors is different, the current through the resistor will be different, and accordingly the power dissipated by the resistor will be different... Physics Problems Ans-8: Option-e is the answer. The problem is based upon Coulomb's law. The force between the two charges is inversely proportional to the square of the distance between them. Therefore, as distance between the charges increases, the force becomes lesser by an amount of the square of the increment.
Situation-A: Distance between Q and 2Q is R. Force = (k Q 2Q)/R2 = F
Si...

Capacitance (Timing Circuits)

2 pages
(500 words)

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...resistor, V(t) = V0 * e-t/RC. When charging a capacitor through a resistor, V(t) = Vf – Vf * e-t/RC (“Courseworkbank”).
Timing Circuit
In timing circuits... Introduction The tendency of a capacitor to store energy in an electric field is known as Capacitance. We can also say that it is the amount of electric potential stored for a given potential energy store in a parallel plate capacitor. Capacitance is directly proportional to the surface area of the plates and inversely proportional to the separation distance between the plates in parallel plate capacitor ("Capacitance")
. The formula for calculating capacitance is
C=Q/V
Theory
Capacitance
Certain amount of energy is needed to transfer charge to the...

Series-Parallel Circuit

5 pages
(1250 words)

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...resistor circuit analysis is to be able to determine all voltage drops, currents, and power dissipations in a circuit. The general strategy to accomplish this goal is as follows.
Step 1: Assess which resistors in a circuit are connected together in simple series or simple parallel.
Step 2: Re-draw the circuit, replacing each of those... RESEARCH PAPER Series - parallel circuits 19577 Issue 16 -08- 2008 Deadline 18 -08- 2008
Source www.academia-reseaech.com
What is a series-parallel circuit
In simple series circuits, all components are connected end-to-end to form only one path for electrons to flow through the circuit.
...

Power electornic lab2

5 pages
(1250 words)

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...resistor needed for the power resistor. In the calculation, it was found that the value of the power resistor must exceed 30Ω. This meant that the best resistor for the experiment was the 33Ω power resistor.
The first lab question was about the meaning of load regulation. From research it was determined that voltage regulation is the measure of the ability of a transformer to maintain constant secondary voltage in case it is supplied with constant... Electronics Lab 2 0 Aim This experiment was set up to determine the functionality of transformers voltage regulation. It focused on measuring the impedance of the high frequency transformers and demonstrating the characteristics of the voltage...

Use of batteries as power sources

8 pages
(2000 words)

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...resistor with low-offset dimension circuitry.
Furthermore, the present measurement is incorporated to decide the alter in coulometric ability. In adding up, the gauge measures temperature plus voltage, assess gas-gauging algorithms to decide the obtainable capacity in the battery, and computes time-to-empty and additional values necessary by the host. The available capacity... Running Head: USE OF BATTERIES AS POWER SOURCES Use Of Batteries As Power Sources [The [The of the Institution]
Use Of Batteries As Power Sources
Battery Circuit
Introduction
If we analyzed then we come to know that Battery-pack requirements have gone through a main evolution in the history several years, and to...

Electrical & electronic principles ( lap report ) in transistor

5 pages
(1250 words)

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...resistor socket, BJT board of amplification, resistors, scope, DC power supplies (5v fixed and Variable), signal generator, digital Multi-meter
Part 1: DC Gain Investigation.
The voltage of the base emitter transistor was tested using the diode test multimeter function (VBE). Another function diode junction within the transistor was sketched showing the BJT symbol, and both voltage diodes with polarities. The sketch is displayed in diagram 1.
Diagram 1.
The experiment was set up according to diagram 2.
Diagram 2.
RC= 10 power resistor (approx... Bipolar Transistor The prime aim of the experiment was to investigate the characteristics of...

Engineering sceince

6 pages
(1500 words)

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...resistors of 7Ω, 12Ω and 14Ω respectively are connected in parallel. This combination is connected in series with another parallel combination of 16Ω and 19Ω. If the whole circuit... Engineering Science Task Learning Outcome 3 Solve problems using Kirchhoff’s laws to calculate currents and voltages in circuits Using Kirchhoff’s analysis, determine the value and direction of the currents in each
Branch for the circuit below. You must show all working out step by step.
Solution:
Considering the given circuit as shown in fig. 3.1.1. In this circuit there are two nodes A & B along with two Loops L1 & L2. Now to calculate the current in each branch by using Kirchhoff’s laws we proceed as.
Now according to ...

Lab report

3 pages
(750 words)

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...resistor is. These objectives were met using a DMM, resistor and a battery cell.
Introduction
The resistance (R) of a circuit component is the voltage drop (V) across the component divided by the current (I) across the device (R=V/I). It, therefore, means that if the resistance is high the voltage will also be high in order for a specific amount of current to be delivered. For ohmic resistors... Lab report: Measurement of internal resistance The main reasons why the experiment was carried was to know how to measure current using ammeter, understand how to get total resistance in parallel and series. Also find out the relationship between voltage, current and resistance and finally know what an ohmic...

Charging and Discharging Capacitors

8 pages
(2000 words)

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...resistor) and LR (inductance-resistor) circuits. When a fully discharged capacitor is recharged the charge and voltage approach their maximum values exponentially according to' Kirchoff's Voltage Rule'. When a capacitor is being charged, at t=0, the voltage across the capacitor terminals is 0. As the charge builds up in the capacitor the voltage also increases. The increase is exponential, Kirchoff's Voltage Rule (Multi-loop Circuits, 1999), because... . (University of Pennsylvania, 1998)
Question 1: A capacitor of 12 microfarads capacitance is initially discharged. It is then charged through a 40 kilo-ohms resistor from a 50 volts d.c. supply for 0.2 seconds. Calculate:...

Electrical and Electronic Principles (A) UFMFP8-15-1

1 pages
(500 words)

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...resistor voltages drops and therefore the value of that voltage should be taken as negative. On the other, as one cross from negative terminal of a voltage source to the positive terminal of the same voltage source, the voltage value is taken as positive. The contrary is true when moving from a positive terminal of a resistor to the negative terminal.
On the other hand, as regards to Kirchhoff’s Current Law, the algebraic sum... Electrical and Electronic Principles (A) UFMFP8-15-1
Aims and Objectives
The purpose of this lab is to experience and study the Kirchhoff’s Voltage and Current Laws. Examine the given resistive circuits using the above laws. By the end of this lab, you should be able to an...

Semi-conductor Devices and Circuits

18 pages
(5000 words)

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...resistor load and a capacitor. The diode is fed to the secondary winding of the transformer and it conducts when the secondary transformer produces the positive half-cycle, and stops conducting when the secondary produces the negative half cycle. (Lee & Chow 2011, p. 150)
Figure 1 Schematic diagram of half-wave rectification
In this diagram, we can see that the current iL passes from the diode then to the load resistor. The other... Semi-conductor Devices and Circuits
There are two types of rectification, the half-wave and full-wave rectification.
I.1 Half-wave rectification
The simplest rectification is the half-wave rectifier circuit with a single-phase diode. This circuit has only one diode, a re...

Electronics Engineering: Diode

5 pages
(1250 words)

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...resistors.
It is important to note that when current is flowing through a diode, the voltage on the positive leg is higher than... as voltage-sensitive switches, or in a series with a current-limiting resistor to provide voltage regulation. All P-N junctions are light sensitive; photodiodes are merely P-N junctions that are designed to optimize this effect. Photodiodes can be used in two ways-in a photovoltaic role or a photoconductive role. In a photovoltaic role, the photodiode becomes current source when illuminated. This is sometimes called a solar cell. In order to use a photodiode in its photoconductive mode, the photodiode is reverse-biased; the photodiode...

Electrical Principles

6 pages
(1500 words)
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...resistor in place to limit the current. Calculate the value of this protection resistor and explain your calculation. Include references to any aspects of circuit theory you use.
For the calculation of protection resistor, we have to utilize the ohms law, which describes the relation between the current, voltage and resistance. As we know that the LEDs are to be connected in series and in series connection voltage drops and current remains the same.
For this reason the value of protection resistance can be calculated as:
, where I is the current taken by each LED, Vsupply... Electrical Principles Vehicle Lights Question The LEDs are to be wired in series combinations of three LEDs with a protection...

Lab report in DC Voltage Regulators

5 pages
(1250 words)

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...resistor is chosen in such manner that when input... Lab report Introduction In the modern world, almost every electronic circuit requires a supply voltage. The voltage should be clean, steady and have a known value. A linear voltage is regulator is often used to create a known voltage using a transistor which operates in the regulator’s forward active regions and Zener diode which operates in the regions of breakdown.
A voltage regulator can therefore be defined as a gadget which creates an output voltage which is steady, clean and of known value under varying conditions including load impedances/load currents, varying temperatures and/or non-regulated/fluctuating DC input voltage.
Background Informati...

Memristor Hardware Analysis

5 pages
(1250 words)

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...resistor, capacitor and inductor. This paper is very important and had a strong influence in the future which was entitled “Memristor – The missing circuit element”. In his paper, Prof. Chua demonstrated a number of principles to expose that there was a ‘missing’ two-terminal circuit element from the family of “fundamental” passive devices such as resistor, capacitor and inductor. He named... of the Paper] [First Contents Introduction History of Memristor ……………………………………………………………………………. 1
Analogy of Memristor ……………………………………………………………………………1
Characteristics of Memristor ……………………………………………………………………. 2
Development of Memristor ……………………………………………………………………… 3
Pros and Cons …………………………………………………………………………………… 3
Eval...

Memristor Hardware Analysis

5 pages
(1250 words)

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...resistor, capacitor and inductor. This paper is very important and had a strong influence in the future which was entitled “Memristor – The missing circuit element”. In his paper, Prof. Chua demonstrated a number of principles to expose that there was a ‘missing’ two-terminal circuit element from the family of “fundamental” passive devices such as resistor, capacitor and inductor. He named... ? of the Paper] [First Contents Introduction History of Memristor ……………………………………………………………………………. 1 Analogy of Memristor ……………………………………………………………………………1 Characteristics of Memristor ……………………………………………………………………. 2 Development of Memristor ……………………………………………………………………… 3 Pros and Cons …………………………………………………………………………………… 3...

Electronic stethoscope

10 pages
(2500 words)

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...Resistors, ohms and capacitors are used to regulate voltage and current flow. The Stethoscope is an auditory medical appliance for listening to internal resonance in human body which is referred to, in medical language, as auscultation. Heart sound vibration is one of the most essential ways to judge the condition of the cardiac function. Components functions LM386 Low Voltage Audio Power Amplifier is an auditory amplifier designed for exploitation in low electrical energy consumer purpose which provides both current gain and voltage for signals... Topic: Introduction This is a project aimed at designing an electronic stethoscope. The circuit is built using a PCboard and battery as source of power....

Basic electric circuits and measurements

1 pages
(250 words)

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...resistor were obtained and recorded and a graph of V against I plotted to determine the value of R from the slope. In order to prove the validity of ohm’s equation, the experiment involved comparison of the experimentally and directly measured values for the resistor R. The following equation was used:
% difference =
Conclusion
The experiment have illustrated succinctly that the relationship between the flow of current and the flow of charge in a material results to the resistance. In which case, the flow of electric current is responsible for the generation... Basic electric circuit and measurement The major objective of this lab report is to explore the aspect of electrical resistance of materials. ...

Lab report in DC Voltage Regulators

5 pages
(1250 words)

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...resistor and a reverse biased Zener diode while in the second procedure... ? Lab report Voltage regulation is an important aspect in modern day electronics. Time and again, circuit designersfind themselves at loss as to which is more appropriate. In this lab, two kinds of regulators are investigated, LM317 regulator and Zener diode regulator. While both show ability to help stabilize voltage, the level of efficiency is observed to differ. The efficiency recorded in the case of Zener diode regulator is marginally raised as compared to the case of LM317 regulator. The findings are based on two experimental procedures whereby in the first procedure a DC voltage supply is connected in series to a 22 ?...

Matlab problem

5 pages
(1250 words)

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...resistors in series. Resistors are components of electricity which obstruct the flow of electric current and in the process make the current do actual work like lighting, heating, producing sound, magnetism and the like. This task tries to come up with a programming solution to the problem of combining resistors in a manner that would minimize the cost incurred in setting up the entire set up. The task is to come up with a Matlab program which shall be able to lay out the most optimal mode of combining E12 resistors so as to form a desired value of resistance... . It is to see to it that the resistors used are not unnecessarily too many and that the value of resistance that...

Series and Parallel Connections

1 pages
(250 words)

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...resistors are in series, another with resistors connected in parallel. It was realized thatKirchhoff’s Laws for current and voltage are given by equations 1 and 2.
Equation1:
Equation 2:
For circuit devices in series, the voltage drop across the entire series of devices is given by
=
For circuit devices in parallel arrangement, the voltage across... Series and Parallel Connections in DC circuits The purpose of this experiment was to test the theoretical analysis of series-parallel networks through direct measurements; measure properly the voltages and currents of a series-parallel network, and determine the reputation of measured values. This experimentinvolved three circuits set ups: one for which...

AM Transmitter Circuit

2 pages
(500 words)

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...resistors (R1, R2, and R3). The components L1 and C1 constitutes the tank circuit that can be tuned in RF range of 500kHz... ?……….. ………. ……….. AM Transmitter The term Amplitude Modulation (AM) refers to the type of modulation in which an audio signal is combined with a radio frequency carrier in such a way that total wave power is made to vary in accordance with the modulating audio signal (Bertrand 1). The amplitude modulation and transmission of modulated audio signal is carried out through AM Transmitter. Depending upon the type of application and level of operation, an AM Transmitter consists of following basic building blocks as shown in fig.1. Fig. 1 Block diagram of an AM Transmitter From fig.1 it ...

Function of filter circuit

2 pages
(500 words)

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...resistor... Function of filter circuit
A filter circuit server the purpose of producing restrictions on the bandwidth of frequencies for an alternating input signal and generate output with a narrower frequency- bandwidth. It also eliminates the alternating current ripple remaining in the output of the rectification of a diode-based alternating current circuit, leading to higher quality signal.
(b) Gain on the circuit
Gain across two components is derived as
Gc = |Hout(jw)|
Gc = |(Vout(jw) / Vin(jw) )|
Gc = 1 / √ (1 + (wRC) 2)
GR = |HR (jw)|
GR = |VR (jw) / Vin (jw)|
GR = wRC / √ (1 + (wRC)2)
Question 2
The function of this diagram
This diagram represents the relationship between the capacitor and a res...

The Fundamental Noise Source in Electronic Circuits

5 pages
(1250 words)

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...resistor; hence the noise contribution of other resistors is given by;
iii)
Vo (R3)=V
Vj (Rs) is the Johnson noise due to Rs==V
Vo (R2... ANALYSIS OF OP AMP NOISE ANALYSIS OF OP AMP NOISE A non-inverting amplifier employing an op-amp was intended to amplify the signal V1 from a transducer with source resistance Rs. The amplifier has input noise voltage and input noise current spectral densities of Vn1and In1
i. Figure 1: Schematic diagram of non- inverting op-amp showing all the noise sources
ii. Noise contribution due to In1
+=0
-i=0
Noise contribution due to in+ is given by,
Noise contribution due to R3 is given by;
The above equation is the general equation for noise contribution of a resi...

Analogue Electronics

3 pages
(750 words)

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...resistors Equation:
b. i. It will be advisable to use a non-inverting amplifier design since as an open circle DC increase of an Operational Amplifiers is amazingly high, we can in this way bear to lose some of this high addition by associating a suitable resistor over the enhancer from the yield terminal. Again, to the transforming information terminal to both decrease and control the general addition of the intensifier. This then delivers and impact referred to usually as Negative Feedback, and accordingly creates an exceptionally steady Operational Amplifier based framework.
ii. While the "E" favored worth records... Operational Amplifiers a. Inverting amplifier with two separate input...

Max power transfer theorem and kirkchhoffs laws

4 pages
(1000 words)

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...resistor. A decade resistance box was connected across the simulated source of voltage to function as the variable resistor load, RL... Maximum Power Transfer Theorem and Kirchhoff’s law Experiment The maximum Power transfer Introduction The theorem of maximum power transfer posits that for a maximum power to be obtained from a source having a finite internal resistance, the load resistance should be equated to the source observed from the terminal output. It leads to the production of maximum transfer of power. When the load resistance is greater than the source resistance, the efficiency would be higher because a high percentage of the source would be moved to the load. The magnitude of load power...

The Fundamental Noise Source in Electronic Circuits

5 pages
(1250 words)

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...resistor noise. In the non-inverting op-amp shown in the question, we shall consider the noise as a result of the named parameters.
Question 1... ANALYSIS OF OP AMP NOISE ANALYSIS OF OP AMP NOISE INTRODUCTION Approximation of the noise contributed by the elements in a circuit has become important with the increase in system bandwidths. Every component in a circuit shows presence of random electrical noise in them which is mostly in terms of current or voltage. This noise may be considered as a frequency domain or something that occurs within a given period of time. When analyzing noise in an op- amp, one must consider the op-amp voltage and current noise and 1/f corner frequency, the band width and...

Electrical Science

4 pages
(1000 words)

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...resistors, R1 and R2
For two resistors in parallel we have;
Calcurations
To compute the resistance of the circuit;
Resistor, and are in parallel, their effective resistance is given by
= = = 4
For the resistance across R5 and R6, we have
=
All the other parts of the circuit are in seris then we have... ELECTRICAL ENGINEERING Electrical Engineering QUESTION Question(1A) Theory The resistance of a circuit is given by taking the sum of the resistance in parallel and those that are in seris
For resitors in seris we have;
where are the resistances in seris and is the total resistance.
For the resistance in parallel we have;
where Requ is the total resistance for paralel arranged resist...

Frequency Response of Netwroks (Electronic Engineering)

3 pages
(750 words)

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...resistor and the voltage across and current through the capacitor measured... Frequency Response Networks The main objective of this experiment was to investigate how capacitive and inductive reactance’s vary with frequency, plot the frequency response of a simple RC filter, plot the variation of current with frequency in a series RLC circuit and determine the resonant frequency and Q factor and to evaluate simple band- pass and band-stop filters.
The apparatus used were as follows; patch-board, farnell low frequency (LF) oscillator, oscilloscope (CD 1400 including 1 off CX1 449), digital voltmeter and digital frequency meter.
Procedure
The LF oscillator was connected in series of a capacitor and a resist...

Atelectasis

4 pages
(1000 words)

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...resistor. This consistently maintains preset airway pressures of 5-20 cm H2O during inspiration and expiration activities. CPAP operation of device is above atmospheric pressure and needs a continuous gas flow to the airway during inspiration. Air is pushed through the tubing/mask through the nose and then to the throat. The proper treatment pressure is needed for necessary comfort levels to the patient. A device consists of a flow generator, mask and humidifier to relieve nasal dryness or irritation. The drawback with CPAP device is that it requires a trained... ? Atelectasis Introduction Partial or full collapse of a lung is known as atelectasis. This impairs the patient's normal breathing ability....

Engineerin level 2 diploma

4 pages
(1000 words)

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...Resistor: Resistor’s function is to reduce the flow of electric current.
Variable Resistor: Same function as the resistor, the only difference is that the resistance of the resistor is not fixed... Question Tensile Strength: The maximum stress a material ed to stretching load can withstand without tearing. Hardness: Resistance of a metal or other material to indentation, scratching, abrasion or cutting.
Toughness/Brittleness: A property of a material capable of absorbing energy by plastic deformation, intermediate between softness and brittleness. On the contrary, brittleness is the property of a material manifested by fracture without appreciable prior plastic deformation.
Malleability/Ductility: Capabil...

Design of Delay Unit

6 pages
(1750 words)

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...resistor. For the chip to be reset, the voltage must be below 0.8V.
Pin 5. This is the control pin of 555 timer chip. When voltage applied to this pin is varied, it varies the timing of the RC network considerably... Design of Delay Unit
Objectives of the experiment
The main objectives of carrying out this lab experiments were:
To explore the property of 555 chip through experiments
To design and test a Voltage Controlled Oscillator (VCO)
To build a 555- based delay unit
To design and build a trigger circuit
To strengthen my practical skills in electrical design components
Background information
Pin 1 – this is the ground pin. It connects to the zero voltage rail.
Pin 2 – this is the trigger pin. It nor...

Frequency Response of Netwroks (Electronic Engineering)

3 pages
(750 words)

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...resistor and the voltage across and current through the capacitor measured... ? Frequency Response Networks The main objective of this experiment was to investigate how capacitive and inductive reactance’s vary with frequency, plot the frequency response of a simple RC filter, plot the variation of current with frequency in a series RLC circuit and determine the resonant frequency and Q factor and to evaluate simple band- pass and band-stop filters. The apparatus used were as follows; patch-board, farnell low frequency (LF) oscillator, oscilloscope (CD 1400 including 1 off CX1 449), digital voltmeter and digital frequency meter. Procedure The LF oscillator was connected in series of a capacitor and a...

High Voltage

12 pages
(3000 words)

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...resistors or capacitors or both in the reduction of high voltage by diving it. Creation of a volume control circuit... Chapter 2. a) Discuss briefly the importance of the following parameters in the design and application of High Voltage direct current supplies: Voltage stability and control
Voltage stability can be described as the capacity of a system to steadily sustain the systems’ voltage at the desired levels without succumbing to a disturbance at any of its buses. The stability reached at a design is usually considerate of the conditions under which the power system is to be installed and subjected to. Disturbances are characterized by a considerable and steady drop in voltage, usually occasioned b...

Network Measurement Laboratory

3 pages
(750 words)
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...resistor was connected across the output of the black box and the current and the voltage across the resistor measured. The resistance was varied the current and voltage recorded as a function of the resistance. The current and the voltmeter measurement were then used to plot a figure of power dissipated in the real... Assignment number This experiment is aimed to experimentally determine the Thevenin and Norton equivalent circuit of a Black box network which consists of resistive elements and voltage source. Furthermore, the value of the load resistance connected across the two terminals of the black box will be determined such that maximum power is transferred from the network load. Finally, the...

Paraphrasing#3

5 pages
(1250 words)

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...resistors R1, R2, and R3 in the circuit, but on a parallel arrangement. With the help of a multi-meter and Agilent multi-meter, take the resistors readings for use in calculations later.
Conclusion
The experiment shows R2 and R3 have equal resistance since they are placed in a parallel arrangement. Currents recorded at resistors R1, R2, and R3 are equal because they are arranged in series.
Picture 2(lab2. 1/4)
Aim
The experiment’s core aim is to design a circuit following NI Multisim 13.0 model and measure the current and voltage as directed the circuit diagram provided. Use the measurements... Picture lab1 1) Methods Connect the conducting wires making the circuit to the source of power. Insert three...

RC and RI circuits

5 pages
(1250 words)

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...resistor... Introduction Capacitors are utilized in timing circuits within numerous devices. The time aids in maintenance of lightinglonger in order to remove the keys elements. The values are characterized with the time constants. This experiment measured the time constant of diverse capacitors in two conditions namely measuring the time constant for several seconds and measuring the time constants for microseconds. This experiment focuses on the examination of three electronic circuits containing passive components. The circuit diagrams were constructed utilizing Multisim software platform. The data and observation were recorded whilst simulating the above circuits.
RC circuit contain both resistor ...

Digital multimeter

10 pages
(2500 words)

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...resistors, ammeter, voltmeter, capacitors and rheostat. Written analysis together with written statements is provided. The main objective of the of this article is to provide a user guide on Digital Multimeter technology as applied in the control of current flowing through a conductor. The user guide could be used by a number... ? Digital multimeter This article is about Digital Multimeter technology; its history and how it has evolved with time since it was invented up to the time that it was considered to convenient. The article goes ahead to provide graphical analysis of various equipments used in digital multimeter technology. Also presented are the symbols used to represent various devices like...