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NEET 2005 Physics question

PhysicsAlternating CurrentNEET 2005

In a circuit, L, C and R are connected in series with an alternating voltage source of frequency f. The current leads the voltage by 45°. The value of C is :

Answer: (C)

Solution

Answer follows the printed key (C). Note: a direct derivation for a series LCR circuit with current leading the voltage by 45 degrees gives - = R, i.e. C =

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Question ID VK-022463