NEET2016Physics-AC Circuits
NEET 2016 Physics Power in AC Circuits MCQ Question
Type: MCQ-numerical-Medium-Class 12
An inductor 20 mH, a capacitor 50 μF and a resistor 40 Ω are connected in series across a source of emf V = 10 sin340t. The power loss in A.C. circuit is
A
0.76 W
B
0.89 W
C
0.51 W
D
0.67 W
Correct Answer
Option C
Detailed Explanation
The power loss in an AC circuit is given by P = I²R, where I is the current and R is the resistance. Calculating the current using the impedance of the circuit gives the power loss.
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