A current i passes through a wire of length l , radius of cross-section r and resistivity `rho` . The rate of heat generation isA. `(i^(2)l rho)/(pi r^(2))`B. `i^(2)((l rho)/(pi r^(2)))^(2)`C. `i^(2)l rho//r`D. `i l rho//r`

A current i passes through a wire of length l , radius of cross-sectio

1.	A current i passes through a wire of length l , radius of cross-section r and resistivity `rho` . The rate of heat generation isA. `(i^(2)l rho)/(pi r^(2))`B. `i^(2)((l rho)/(pi r^(2)))^(2)`C. `i^(2)l rho//r`D. `i l rho//r`
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A current i passes through a wire of length l , radius of cross-section r and resistivity `rho` . The rate of heat generation isA. `(i^(2)l rho)/(pi r^(2))`B. `i^(2)((l rho)/(pi r^(2)))^(2)`C. `i^(2)l rho//r`D. `i l rho//r`

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