A) \[{{T}_{2}}>{{T}_{1}}\]
B) \[{{T}_{1}}>{{T}_{2}}\]
C) \[{{T}_{1}}={{T}_{2}}\]
D) None of these
Correct Answer: A
Solution :
From Ohms law \[V=\,I\,R\] \[\Rightarrow \] \[\frac{I}{V}=\frac{1}{R}\] Hence, slope \[=\frac{1}{R}\] Since 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, \[{{T}_{2}}>{{T}_{1}}\]
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