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MHT CET 2023 (9 May, Shift 1) · Power, Power Factor & Wattless Current

Power, Power Factor & Wattless Current question from MHT CET 2023 (9 May, Shift 1)

Q41MHT CET 2023 · 9 MAY · SHIFT 1Easy

Power, Power Factor & Wattless Current

In an $AC$ circuit, the current is $i = 5\sin\left(100t - \frac{\pi}{2}\right)\text{ A}$ and voltage is $e = 200\sin(100t)$ volt. Power consumption in the circuit is $(\cos 90^\circ = 0)$

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Answer: (b)

Phase difference between current and voltage is $\phi = \frac{\pi}{2}$ .
$P = \frac{e_0i_0}{2}\cos 90^\circ = 0$
So the answer is (b) 0 W.

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