Current Electricity - Result Question 70

75. The total power dissipated in watts in the circuit shown here is

[2007]

(a) 40

(b) 54

(c) 4

(d) 16

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Answer:

Correct Answer: 75. (b)

Solution:

  1. (b) Power dissipiated $=P$ $=\frac{V^{2}}{R}=\frac{(18)^{2}}{6}=54 W$