In an a.c. circuit, voltage and current are given by: V = 100sin (100t) V and I = 100sin (100t + π/3) mA respectively. The average power dissipated in one cycle is: (a) 5 W (b) 25 W (c) 2.5 W (d) 10 W

Answer: (c). P = (V₀I₀)/(2)cos φ with φ = π/3 P = (100×0.1)/(2)×0.5 P = 2.5 W So the answer is (c) 2.5 W.

In an a.c. circuit, voltage and current are given by: V = 100sin… | JEE Main 2024 (29 Jan, Shift 2)

Q33JEE Main 2024 · 29 JAN · SHIFT 2Easy

Power, Power Factor & Wattless Current

In an a.c. circuit, voltage and current are given by:

$V = 100\sin(100t)\text{ V}$ and $I = 100\sin\left(100t + \frac{\pi}{3}\right)\text{ mA}$ respectively.

The average power dissipated in one cycle is:

Show answer and solution

Answer: (c)

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