Verification of Ohm's Law
To verify the relationship between potential difference (V) and current (I) for a given conductor.
0.00 V
0.00 A
Experiment Controls
Applied Voltage (V)
0.0 V
Unknown Resistance (R)
10 Ω
*Changing R will reset the graph.
| S.No | Voltage (V) | Current (I) | V / I = R (Ω) |
|---|---|---|---|
| No readings recorded yet. | |||
Theory
Ohm's Law states that the current (I) flowing through a metallic conductor is directly proportional to the potential difference (V) across its ends, provided its temperature and other physical conditions remain constant.
V = I × R
Where R is the constant of proportionality called Resistance.
Procedure
- Set a value for the Resistance (R) using the slider. Keep this constant.
- Adjust the voltage slider to vary the potential difference (V).
- Observe the corresponding current value (I) on the ammeter.
- Click "Record Reading" to plot the point on the V-I graph.
- Repeat for at least 5 different voltage values.