The current $I$ and voltage $V$ graphs for a given metallic wire at two different temp $\mathrm{T}_{

Question

The current $I$ and voltage $V$ graphs for a given metallic wire at two different temp $\mathrm{T}_{1}$ and $\mathrm{T}_{2}$ are shown in the figure. It is concluded that

Professor PC Thomas Classes · Answer

$\mathrm{R}_{1}=\frac{\mathrm{V}_{1}}{\mathrm{I}} \quad \mathrm{R}_{2}=\frac{\mathrm{V}_{2}}{\mathrm{I}}$\ $\mathrm{V}_{2}>\mathrm{V}_{1} \quad 	herefore \mathrm{R}_{2}>\mathrm{R}_{1} \quad 	herefore \mathrm{~T}_{2}>\mathrm{T}_{1}$\