A 45-VAC signal (rms) is present across a 5- $\Omega$ resistor. The time-averaged power dissipated in the resistor is
A) 400 W.
B) 800 W.
C) 200 W.
D) 100 W.

Name: A 45-VAC signal (rms) is present across a 5- $\Omega$ resistor. The time-averaged power dissipated in the resistor is A) 400 W. B) 800 W. C) 200 W. D) 100 W.
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Question

Quizplus · Accepted Answer

The time-averaged power dissipated in a resistor is given by P = Vrms^2 / R. Substituting the given values, we get P = (45 V)^2 / 5 $\Omega$ = 400 W.

A 45-VAC Signal (Rms) Is Present Across a 5- Ω\OmegaΩ Resistor the Time-Averaged Power Dissipated in the Resistor Is A)

A 45-VAC Signal (Rms) Is Present Across a 5- $\Omega$ Resistor the Time-Averaged Power Dissipated in the Resistor Is
A)