Physics-Power in AC Circuits
NEET Physics Power in AC Circuits MCQ Question
Type: MCQ-numerical-Easy-Class 12
A 100 Ω resistor is connected to a 220 V, 50 Hz AC supply. What is the average power consumed by the resistor over a full cycle?
A
484 W
B
220 W
C
110 W
D
440 W
Correct Answer
Option A
Detailed Explanation
The average power P consumed by a resistor in an AC circuit is given by P = V_rms^2 / R. For an AC supply with V_rms = 220 V and R = 100 Ω, P = (220)^2 / 100 = 484 W.
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