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Which of the following graphs correctly ...

Which of the following graphs correctly represents the variation of heat energy (U) produced in a metallic conductor in a given time as a function of potential difference (V) across the conductor ?

A

B

C

D

Text Solution

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The correct Answer is:
D
According to Joule's law of heating `U = (V^(2))/(R) ""t`
It shows that the graph between heat energy (U) and potential difference (V) is upwards parabola and is represented by option (d) .
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