GATE EC 2015 Set 1 — Question 23
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Network Theory → Transient & AC Analysis → RL, RC & RLC Transients
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Question
In the circuit shown, the switch SW is thrown from position to position at time . The energy (in ) taken from the source to charge the capacitor from to is
Correct answer
(C) 0.9
Solution
1.The total work done or energy supplied by a voltage source to charge a capacitor to a final voltage is given by .
2.The charge on the capacitor is .
3.The energy supplied by the source is .
4.Note: Half of this energy () is stored in the capacitor (), and the other half is dissipated as heat in the resistor during the charging process.
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