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MHT CET Physics question

PhysicsElectromagnetic InductionMHT CET

An L.C. circuit contains 10 mH inductor and a 2.5F capacitor the resistance of the circuit is negligible. The energy stored in the circuit is completely magnetic at time (in milli seconds)being measured from the instant when the circuit is closed

Answer: (A)

Solution

The energy is purely magnetic when the capacitor charge is zero, i.e. at , times in the ratio ; options (b)

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Question ID VK-081812