Which statement describes an ohmic conductor?
Answer and explanation
Correct answer: D. Its resistance stays constant when the temperature is constant
- Step 1: For an ohmic conductor V/I is constant at constant temperature.
Answer
Its resistance stays constant when the temperature is constant.
Why not the others: Its resistance increases when the current increases at constant temperature: that would not be ohmic behaviour. The current through it is independent of the potential difference: in an ohmic conductor current is proportional to potential difference. Its resistance is always zero: all ordinary conductors have some resistance.
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