Theory VS Experimental Verification of Ohm’s Law
In our previous articles, we observed the theoretical formulas of Ohm’s law, its calculations in the lab report, and experiment. Today you’ll learn the verification of theory vs experimental results on a 1 kΩ resistor.
The theoretical results are obtained from the formula of Ohm’s law: V = IR. The experimental verification is provided for a metal film 1 kΩ (±0.05%). We have used a high-quality resistor with negligible tolerance value so as to reduce the tolerance error.
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| Voltage | Theory current | Experimental current |
|---|---|---|
| 1 V | 1 mA | 1.000 mA |
| 2 V | 2 mA | 1.997 mA |
| 3 V | 3 mA | 3.000 mA |
| 4 V | 4 mA | 4.000 mA |
| 5 V | 5 mA | 5.001 mA |
| 6 V | 6 mA | 6.003 mA |
| 7 V | 7 mA | 7.000 mA |
| 8 V | 8 mA | 7.999 mA |
| 9 V | 9 mA | 9.839 mA |
| 10 V | 10 mA | 10.000 mA |
The little problem in our calculations arises due to improper handling of multimeter probes. You can learn the complete method to perform the Ohm’s experiment here and can calculate the current values by using the Ohm’s law calculator.