MHT CET 2024 Physics question
A circuit having a self inductance of 1 henry carries a current of 1 A. to prevent the sparking when the circuit is broken, a capacitor which can withstand 500 V is connected across the switch. What is the minimum value of the capacitance of the capacitor?
Answer: (B)
Solution
When the circuit is broken, the energy stored in the inductor must be absorbed by the capacitor without exceeding its maximum voltage. Equating energies, , so F
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