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Question: Answered & Verified by Expert

As shown in the figure an inductor of inductance 200 mH is connected to an AC source of emf 220 Vand frequency 50 Hz. The instantaneous voltage of the source is 0 V when the peak value of current is aπ A. The value of a is _____ .

PhysicsAlternating CurrentJEE MainJEE Main 2022 (24 Jun Shift 1)
Solution:
1170 Upvotes Verified Answer
The correct answer is: 242

The reactance of the given inductor is,

XL=ωL=2πfL=2π×50×0.2=20π Ω.

The maximum current in the given circuit will be,

i0=2VrmsXL=2×22020π=242π A

Therefore, a=242

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