The current voltage graph for a given metallic wire at two different temperatures T1 and T2 are shown in given figure, which of the relation is correct form the following?

Question

The current voltage graph for a given metallic wire at two different temperatures T1 and T2 are shown in given figure, which of the relation is correct form the following? (A)  T2>T1  (B)  T1>T2  (C)  T1=T2  (D) none of these

Tardigrade Admin · Accepted Answer

The slope of given I-V curve (1/V)=(1/R) i.e., slope (1/R) The slope of graph at temperature T1 is greater than that at temperature T2 so R1<R2 Since resistance increases with rise of temperature hence, T2>T1

Q. The current voltage graph for a given metallic wire at two different
temperatures $T_{1}$ and $T_{2}$ are shown in given figure, which of the relation is correct form the following?

$T_{2} > T_{1}$

$T_{1} > T_{2}$

$T_{1} = T_{2}$

none of these

The slope of given I-V curve $\frac{1}{V} = \frac{1}{R}$ i.e., slope $\frac{1}{R}$ The slope of graph at temperature $T_{1}$ is greater than that at temperature $T_{2}$ so $R_{1} < R_{2}$ Since resistance increases with rise of temperature hence, $T_{2} > T_{1}$

Q. The current voltage graph for a given metallic wire at two differenttemperatures T1​ and T2​ are shown in given figure, which of the relation is correct form the following?

T2​>T1​

T1​>T2​

T1​=T2​