an oscillating LC circuit has a resonant frequency of 1.2 x 10^ 6 Hz. The diagra

Question

an oscillating LC circuit has a resonant frequency of 1.2 x 10^ 6 Hz. The diagram shows the system at t= 0s when there is no charge on the capacitor and the current is in the direction shown. At this time, the energy stored in the indicator is 2.5 x 10^ -7 J. Determine the value of the current at the instant shown in the drawing. 7 points Save Answer Anoscilating LC circuit has a resonant frequency of 1.2x106 ?The diagram shows the system atr-oswhen there is no chase on the capacitor and the current is in the direction shown. At this time, the energy stored in the inductor is 2.5 10 J L-0.20 mH Relerence Ref 23 Determine the value of the current at the instant shown in the drawing OA 0.12A O B.0.05 A OC.0.02A O D,0.09 A

Explanation / Answer

At the given instant, there is no charge on the capacitor. It simply behaves as a short circuit.

Given:

Einductor = 2.5 x 10-7

1/2 * LI2 = 2.5 x 10-7

=> I = sqrt[(2*2.5 x 10-7)(0.20*10^-3)]

= 0.05 A

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