For a piece of the conductor, its resistance is determined using the following relationship;
Where, L is the length of the wire where the voltage is measured, and A is the area of the cross-section of the wire. Resistivity is measured in ohm-meters (Ωm). The cross sectional area can be determined using the following formula.
Conductivity specifies the electrical character of the conductor in terms of its capability in conducting current. Conductivity is measured in units of ohm-meters (Ωm-1). Most metals are very good electricity conductors (Bird, 2013).
Validity is the process of determining whether or not the obtained data is correct and the degree of its validity (Holm, 2013). The process is done by obtaining the percentage errors in the readings reflecting the data accuracy.
Percentage error: In every experiment, error are meant to occur due to measurement accuracies (Mathsisfun.com, 2012). In our experiment, we used the meter ruler where reading were made by eye observation. Direct observation can give different records due to different angles of view. The voltmeter and the ammeter also give wrong readings if they are not correctly calibrated.
The next time we perform an experiment on the resistance of the conductor, we would first conduct research on the various factors affecting the resistance of the conductor in use and choose the most effective one.
The experiment was performed by regulating the voltage on the circuit. Due to this regulations, the current flowing through the Iron conductor also changed. The reading of the different voltages were recorded and the corresponding current. Resistance was determined from the obtained recordings of the voltages and current.
In the graphs obtained by plotting resistance against the length, it can be seen clearly how the length is proportionally related to the resistance. As the length increases so do the resistance. It clearly shows that our graph obeys Ohms law since the line passes
First, we hand to find the electrical resistance of the wire. Electrical resistance is what hinders the electric current to flow. The following factors affect the resistance of a wire;…
Newton's First Laws is intuitive and can be seen directly at work in our daily life. For the first case, an example would be a soccer ball which will not be going anywhere unless someone kicks it or carries it. On the second case, consider a ball rolling with a constant velocity.
Most measured substances were already in the liquid state. However, lemon juice was diluted prior to the measurement while the Rolaid antacid tablet was crushed and mixed in water prior to measurement.
For the first titration
The wire is coiled severally to create a long wire.
The strain gauge is put into practical application in measuring the stain in bridges, structural beams, and weigh bridges and in motor vehicle industries. Stain gaged is mounted on the
By measuring how the temperature changes when H2O2 and a catalyst are mixed, it is possible to determine the enthalpy of decomposition H2O2. This experiment will determine the enthalpy of decomposition of H2O2 when it is mixed with potassium
By the end of this lab, you should be able to analyse circuit behaviour when DC or AC voltages are applied to the circuits. You are required to record all activities (observations, results and comments) in your logbook as you
The author provides the simplest type of audio amplifier. This amplifier contains output transistors that conduct irrespective of its output signal waveform. This amplifier is known to be the most linear. The only disadvantage is that it has low frequency. It is mostly applied in areas where high linearity is needed and has enough power available.
8 pages (1750 words)Lab Report
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