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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Suppose the initial charge on the capacitor is 6 mC. What is the total energy stored in the circuit initially? What is the total energy at later time? - Physics

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प्रश्न

Suppose the initial charge on the capacitor is 6 mC. What is the total energy stored in the circuit initially? What is the total energy at later time?

संख्यात्मक
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उत्तर

Capacitance of the capacitor, C = 30 μF = 30 × 10−6 F

Inductance of the inductor, L = 27 mH = 27 × 103 H

Charge on the capacitor, Q = 6 mC = 6 × 103 C

Total energy stored in the capacitor can be calculated by the relation,

`"E" = 1/2 "Q"^2/"C"`

= `1/2 xx (6 xx 10^-3)^2/(30 xx 10^-6)`

= `6/10`

= 0.6 J

Total energy at a later time will remain the same because energy is shared between the capacitor and the inductor.

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