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Q.

If a current I = I0sinωt−π2 flows in an AC circuit across which an AC potential of E=E0sin ωt has been applied, then the power consumption P in the circuit will be

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a

P=E0I02

b

P=2E0I0

c

P=E0I02

d

P = 0

answer is D.

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Detailed Solution

Phase angle ϕ=90∘, so power P=VI cos ϕ=0

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