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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...

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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

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... The Internal Resistance of a Cell and EMF
Abstract
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 resistor...

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...

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.
...

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...

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)

Nobody downloaded yet

...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 ...

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:...

Lab report

3 pages
(750 words)

Nobody downloaded yet

...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...

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

1 pages
(500 words)

Nobody downloaded yet

...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)
, Download 1

...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...

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