Basics of ac circuits: A 500-W device is connected to a 230-V ac power source. What is the peak voltage across this device?

Name: Basics of ac circuits: A 500-W device is connected to a 230-V ac power source. What is the peak voltage across this device?
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Question

Quizplus · Accepted Answer

The peak voltage (V_peak) in an AC circuit is given by V_peak = V_rms * sqrt(2), where V_rms is the root mean square voltage (230 V in this case). Calculating gives V_peak = 230 * sqrt(2) ≈ 325 V, which is closest to option A, 330 V.

Basics of Ac Circuits: a 500-W Device Is Connected to a 230-V