A) \[{{T}_{1}}>{{T}_{2}}\]
B) \[{{T}_{1}}<{{T}_{2}}\]
C) \[{{T}_{1}}={{T}_{2}}\]
D) \[{{T}_{1}}=\frac{1}{{{T}_{2}}}\]
Correct Answer: A
Solution :
(a) \[{{T}_{1}}>{{T}_{2}}\] The slope of V-l graph gives the resistance of a conductor at a given temperature. From the graph, it follows that resistance of a conductor at temperature \[{{T}_{1}}\] is greater than at temperature\[{{T}_{2}}\]. As the resistance of a conductor is more at higher temperature and less at lower temperature, hence \[{{T}_{1}}>{{T}_{2}}\].
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