An AC voltage source, with a peak output of 200 V, is connected to a 25-$\Omega$ resistor. What is the effective (or rms) current in the circuit?
A) 2.8 A
B) 5.7 A
C) 4.0 A
D) 2.0 A

Name: An AC voltage source, with a peak output of 200 V, is connected to a 25-$\Omega$ resistor. What is the effective (or rms) current in the circuit? A) 2.8 A B) 5.7 A C) 4.0 A D) 2.0 A
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Question

Quizplus · Accepted Answer

The effective (rms) voltage is V_peak/√2 = 200/√2 = 141.4 V. The rms current is I_rms = V_rms/R = 141.4/25 = 5.7 A.

An AC Voltage Source, with a Peak Output of 200 Ω\OmegaΩ

An AC Voltage Source, with a Peak Output of 200 $\Omega$