IIT JEE Advanced 2006 Paper 1

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This section contains 4 paragraphs. Based on each paragraph, there are 3 questions. Each question has 4 choices (A), (B), (C) and (D) out of which ONLY ONE is correct.
Paragraph for Questions 21–23:
The capacitor of capacitance C can be charged (with the help of a resistance R) by a voltage source V, by closing switch S1 while keeping switch S2 open. The capacitor can be connected in series with an inductor L by closing switch S2 and opening S1.

Section: Physics

Question : 22 of 120

Marks: +1, -0

After the capacitor gets fully charged, S1 is opened and S2 is closed so that the inductor is connected in series with the capacitor. Then,

[JEE Adv 2006 P1]

at t = 0, the energy stored in the circuit is purely in the form of magnetic energy.
at any time t > 0, the current in the circuit is in the same direction.
at t > 0, there is no exchange of energy between the inductor and the capacitor.
at any time t > 0, the instantaneous current in the circuit may V √
C
L

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