The frequency of oscillation of the LC circuit in the figure is 200 kHz. At time t=0 the upper capacitor plate has its maximum positive charge.

a)At t=2.5 µs, the energy is completely stored in the inductor.
b)At t=2.5 µs, the current is zero.
c)At t=1.25 µs, the current is maximum.
d)At t=1.25 µs, half the energy is stored in the capacitor, half in the inductor.
e)At t=2.5 µs, the charge on the lower plate has its maximum positive value.

Question

The frequency of oscillation of the LC circuit in the figure is 200 kHz. At time t=0 the upper capacitor plate has its maximum positive charge.  


a)At t=2.5 µs, the energy is completely stored in the inductor.
b)At t=2.5 µs, the current is zero.
c)At t=1.25 µs, the current is maximum.
d)At t=1.25 µs, half the energy is stored in the capacitor, half in the inductor.
e)At t=2.5 µs, the charge on the lower plate has its maximum positive value.

anonymous · Answer

My answer was ABCE to be true but it seems I'm mistaken. If anyone could help me understand which are true and which aren't and why it would be greatly appreciated

irishboy123 · Answer

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forgive the crap artwork but i hope this reflects your question.  

so, at a -- the circuit has gone a half cycle and all the energy is back in the capacitor?