GATE EC 2015 Set 1 — Question 41
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Network Theory → Transient & AC Analysis → RL, RC & RLC Transients
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Question
In the circuit shown, switch SW is closed at . Assuming zero initial conditions, the value of (in Volts) at sec is ________.
Correct answer
2.48 to 2.58
Solution
1.Find the Thevenin equivalent across the capacitor terminals for (switch closed):
- Thevenin Voltage (): Using voltage division across the resistor,
- Thevenin Resistance (): Looking back from the capacitor with the source shorted,
2.Calculate the time constant ():
3.Determine the capacitor voltage equation:
Since initial conditions are zero (),4.Calculate value at sec:
The value is approximately 2.53 V.Continue learning with Success Tracker
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