Physics · Current Electricity
For an ohmic metallic conductor, what is the characteristic shape of the Voltage-Current (V-I) graph when the temperature is maintained constant?
- 1An exponential curve bending sharply upwards
- 2A circle centered at the origin
- 3A horizontal line parallel to the voltage axis
- 4A straight line passing through the origin✓
Correct answer
A straight line passing through the origin
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