A 300V-DV power supply is used to charge a 25-mu F capacitor. After the capacito

Question

A 300V-DV power supply is used to charge a 25-mu F capacitor. After the capacitor is fully charged, it is disconnected from the power supply and connected across a 10-mH inductor. The resistance in the circuit is negligible. a) Find the total charge stored in the capacitor b) Find the total energy stored in the capacitor c) Find the frequency and period of the oscillation of the circuit. d) Find the capacitor charge and circuit current 1.2 ms after the two components are connected. e) Find the magnetic and electric energies at t = 0.0 s and t = 1.2 ms.

Explanation / Answer

total charge stored = C*V ( C is capacitance , V is voltage across capacitor)

=> Q = 25*10^-6*300 = 0.0075 C

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