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Electric Circuits

Electric Circuits
Consider the following circuit : Switch is closed at t = 0 Find i(0 +)

 V/R.
 0.
 V / {R + (sL + 1 / Cs)}.
 (V*L) / (R*C)

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Electric Circuits
In the network shown, what is the current I in the direction shown?

 1 / 3 A.
 0 A.
 4 A.
 5 / 6 A.

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Electric Circuits
If L and C both are doubled than damping in above circuit will be

 doubled as compared to previous one.
 remains same.
None of these
 halved as compared to previous one.

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Electric Circuits
A capacitor has a capacitance of 6 μF. Calculate the stored energy in it if a DC voltage of 100 V, is applied across it?

 2.5 × 102 joules.
 3 × 102 joules.
 6 × 102 joules.
 4 × 102 joules.

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Electric Circuits
In a capacitive circuit, the capacitive reactance is

 directly proportional to frequency
 directly proportional to the square of frequency
 indirectly proportional to frequency
 indirectly proportional to the square of frequency

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Electric Circuits
Coating generally recommended for hard surfacing is

 copper plating.
None of these
 chromium plating.
 lead plating.

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MORE MCQ ON Electric Circuits

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