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In an a.c. circuit voltage and current are given by : V = 100 sin (100 t) V and I = 100 sin ⎟ ⎠ ⎞ ⎜ ⎝ ⎛ π + 3 t 100 mA respectively. The average power dissipated in one cycle is :

1. 25 W
2. 2.5 W
3. 10 W
4. 5W

Correct answer: 2.5 W

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