First slide

Temperature dependence

Question

The i–V graph of a conductor at two different temperatures $T_{1} a n d T_{2}$ is given. Then :

Easy

A

$T_{1} = T_{2}$
B

$T_{1} > T_{2}$
C

$T_{1} < T_{2}$
D

$T_{1} \geq T_{2}$

Solution

Slope I – v graph is $\frac{1}{R}$
$R \propto T$
Slope (1) > Slop (2)
$R_{1} < R_{2} T_{1} < T_{2}$

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