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The V - i graph for a conductor at temp...

The V - i graph for a conductor at temperature `T_(1)` and `T_(2)` are as shown in the figure. `( T_(2) - T_(1))` is proportional to

A

`cos 2 theta`

B

`sin 2theta`

C

`cot 2 theta`

D

`tan 2 theta`

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The correct Answer is:
C
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