1.

After the capacitor gets fully charged, S_(1) is opened and S_(2) is closed so that the inductor is connected in series with the capacitor. Then,

Answer»

at t=0,ENERGY stored in the CIRCUIT is purely in the formed of magnetic energy.
at any time `TGT 0`, current in the circuit is in the same direction
at `tgt 0`, there is no exchange of energy between the inductor and capacitor
at any time`tgt0`instantaneous current in the circuit MAY`Vsqrt(C)/(L)`

Solution :`Q=Q_(0)cosomegat =CV cosomegat`
`I=(dQ)/(dt)=-omegaCV SINOMEGAT`
`I_(max)=omegaCV=1/(LC) C.V=Vsqrt(C/L)`
`I=-Vsqrt(C/L) sinomegat`


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