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PhysicsJEE Main 2 Apr 2026, Shift 2·Q17·MCQ·Moderate

Alternating Current · LCR and power

The figure given below shows an LCR series circuit with two switches S1S_1 and S2S_2. When switch S1S_1 is closed keeping S2S_2 open, the phase difference (ϕ\phi) between the current and source voltage is 30∘30^\circ and phase difference is 60∘60^\circ when S2S_2 is closed keeping S1S_1 open. The value of (3L1−L2)(3L_1 - L_2) is H.
  1. (1)92\dfrac92
  2. (2)29\dfrac29
  3. (3)13\dfrac13
  4. (4)3

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