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  4. Heat produced in a wire of resistance R due to current flowing at a constant potential difference is proportional to

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Q. Heat produced in a wire of resistance $R$ due to current flowing at a constant potential difference is proportional to

Chhattisgarh PMTChhattisgarh PMT 2004

Solution:

$H=\frac{V^{2} t}{R}$
$ \because V$ is constant
$\therefore $ For constant time $H \propto \frac{1}{R}$