Ohm Law
Laboratory Report
Lab #: 5
Title: Ohm’s Law
Abstract:
Experiment #5 will familiarize ourselves with Ohm’s Law to prove how current and voltage are linearly proportional to a dc circuit. Also that the proportionality constant is the same as resistance.
Introduction:
In this lab we will need to know what Ohm’s Law is which is V=IR. We can use this equation to also find the current (I) and the resistance ( R). To prove Ohm’s Law we need to create a circuit and measure both the voltage and the current as it changes to see if it’s linear.
Simulation:
The procedure can be found on Chapter 5 page 23-24 in Experiments in Electric Circuits 9th Edition
Experimental:
Voltage (V): 1V-9V
Current (I): ?mA
Resistance (R): 1kΩ, 2kΩ
Results:
1 kΩ (100mA)
|
V (V) |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
|
I (mA) |
0.0 |
1.016 |
2.039 |
3.06 |
4.082 |
5.105 |
6.128 |
7.160 |
8.190 |
9.216 |
|
2.2 kΩ (100mA) | ||||||||||
|
V(V) |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
|
I(mA) |
0.001 |
0.46 |
0.921 |
1.383 |
1.844 |
2.305 |
2.767 |
3.229 |
3.692 |
4.155 |
Discussion:
1) B
2) B
3) A
4) A
5) At these points they show the difference in conductance on how one is doubled the other being parallel lines.
Conclusion:
In the end we were able to prove Ohm’s Law by setting up circuits to measure the
current and the voltage of theses circuits. Because of this we now have a better understanding of Ohm’s Law.
