Physics-AC Voltage
NEET Physics AC Voltage MCQ Question
Type: MCQ-numerical-Hard-Class 12
In an AC circuit, the source voltage is given by V = 220 V. The current I = 0.755 A, and the impedance Z = 291.5 Ω. If the power factor cosφ is 0.95, what is the average power consumed in the circuit?
A
157.5 W
B
160.3 W
C
162.5 W
D
165.5 W
Correct Answer
Option A
Detailed Explanation
The average power consumed is given by P = I V cosφ = 0.755 A × 220 V × 0.95 = 157.5 W. This calculation uses the formula for average power in an AC circuit as provided in the NCERT context.
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