The $V$-$I$ graphs for a conductor at two different temperatures $T...

Question

The $V$-$I$ graphs for a conductor at two different temperatures $T_1$ and $T_2$ are shown in figure. The steeper slope corresponds to $T_1$. Write the relation between $T_1$ and $T_2$.

Accepted Answer

Slope of $V$-$I$ graph = resistance $R = V/I$. Steeper slope means higher $R$, which in metals means higher temperature. $$	herefore T_1 > T_2$$

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