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The current - voltage graphs for a given...

The current - voltage graphs for a given metallic wire at two different temperatures `T_1 and T_2` are shown in the figure.

The temperature `T_2` is greater than `T_1`.

Text Solution

Verified by Experts

True: For a given voltage, current is more in case of `T_1`
Since, `V = IR, R = V//I`. Resistance is
less in case of `T_1` . For a metallic wire,
resistance increases with temperature,
therefore `T_2gtT_1`.
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