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For the circuit shown below, C1 = C2 = 2F and the capacitor C1 has a voltage of 20V when S is open. If the switch S is closed at t = 0, the voltage Vc2 will be a—
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- Fixed voltage of 20V
- Fixed voltage of 10V
- Fixed voltage of – 10V
- Sinusoidal voltage
Correct Option: D
Applying KVL in s-domain
![]() | LS + | 2 | ![]() | I(s) = | |
2S | s |
![]() | LS + | 1 | ![]() | I(s) = | |
S | s |
I(s) = | LS2 + 1 |
VC2(s) = | I(s) = | . | SC2 | SC2 | LS2 + 1 |
Here A + B are constant after taking inverse laplace VC2 (t) will be sinusoidal voltage.
Hence alternative (D) is the correct choice.
