In an a.c. circuit with phase voltage V and current I, the power dissipated is (a) V · I (b) depends on phase angle between V and I (c) 1/2 × V · I (d) 1/√(2) × V · I

Answer: (b). P = VIcos φ, where φ is the phase angle between V and I. So the power depends on the phase angle. So the answer is (b).

In an a.c. circuit with phase voltage V and current I, the power… | NEET 1997 (AIPMT)

Q81NEET 1997 · AIPMTEasy

Power, Power Factor & Wattless Current

In an a.c. circuit with phase voltage $V$ and current $I$ , the power dissipated is

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Answer: (b)

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