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Electric Circuits

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

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

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Electric Circuits
If C be the capacitance, V be the potential difference and I be the current, then I / CV will have the unit of

 power.
 reactive power.
 time.
 frequency.

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Electric Circuits
A 50 μF capacitor is charged to retain 10 MJ of energy by a constant charging current of 1 A. Determine the voltages across the capacitor?

 60 V.
 30 V.
 20 V.
 50 V.

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Electric Circuits
The resistance of 200 W, 200 V lamp is

 100 Ω.
 800 Ω.
  200 Ω.
 400 Ω.

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Electric Circuits
What is represented by the hypotenuse of impedance triangle?

 Apparent power.
 Impedance drop.
 Resistance drop.
 Reactance drop.

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Electric Circuits
Open circuit voltage of a fully charged lead acid cell is

 2 V.
 2.5 V.
 1.9 V.
 2.7 V.

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MORE MCQ ON Electric Circuits

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