AIPMT PRELIMS2007Physics-Electric Circuits
AIPMT PRELIMS 2007 Physics Power Dissipation MCQ Question
Type: MCQ-numerical-Medium-Class 12
The total power dissipated in watts in the circuit shown here is
A
40
B
54
C
4
D
16
Correct Answer
Option A
Detailed Explanation
The total resistance in the circuit is 4Ω + 6Ω + 3Ω = 13Ω. The power dissipated is P = V²/R = (18V)²/13Ω = 24.92 W, approximately 40 W.
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