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The V – I graph for a wire of copper o...

The V – I graph for a wire of copper of length L and cross -section area A is shown in the figure below . The slope of the graph will be

A

Less if the experiment is repeated at a higher temperature

B

More if a wire of silver having the same dimension is used

C

Doubled if the length of the wire is doubled

D

Doubled if length of the wire is halved

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The correct Answer is:
C
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