LC circuit: capacitor charged with S1, then S1 opened and S2 closed: which statement is correct

1. A.
   there is no exchange of energy between L and C.
2. B.
   the current in the circuit is in the same direction.
3. C.
   the instantaneous current in the circuit may be $V\sqrt{\frac{C}{L}}$.
4. D.
   the energy stored in the circuit is purely in the form of magnetic energy.

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1. A.
   At time t=0, the energy stored circuit is purely in the form of magnetic energy.
2. B.
   At t>0, there is no exchange of energy between L and C.
3. C.
   At any time t>0, the current in the circuit is in the same direction.
4. D.
   At any time t>0, the instantaneous current in the circuit may be $V\sqrt{\frac{C}{L}}$

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