The potential difference across a conductor i | vedclass

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(B) The rate of generation of heat $(H)$ in a conductor is given by the formula $H = \frac{V^2}{R}$,where $V$ is the potential difference and $R$ is t

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become four times

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(B) The rate of generation of heat $(H)$ in a conductor is given by the formula $H = \frac{V^2}{R}$,where $V$ is the potential difference and $R$ is the resistance.If the potential difference is doubled,the new potential difference becomes $V' = 2V$.The new rate of heat generation $(H')$ will be $H' = \frac{(V')^2}{R} = \frac{(2V)^2}{R} = \frac{4V^2}{R}$.Since $H = \frac{V^2}{R}$,we have $H' = 4H$.Therefore,the rate of generation of heat becomes four times the original value.

The potential difference across a conductor is doubled,the rate of generation of heat will

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