A sinusoidal ac current flows through a resistor of resistance R . If the peak current is `I_(p)` , then the power dissipated is

A sinusoidal ac current flows through a resistor of resistance R . If the peak current is `I_(p)` , then the power dissipated is
A. `I_(p)^(2)R cos theta`
B. `1/2 I_(p)^(2) R`
C. `4/pi I_(p)^(2) R`
D. `1/pi I_(p)^(2) R`

A sinusoidal ac current flows through a resistor of resistance R . If the peak current is `I_(p)` , then the power dissipated is

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