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ELECTRIC CIRCUITS

Electric Circuits
The capacitance of a conductor is varying from 2 microfarad to zero in 1 sec linearly if the voltage applied to it is 6 V the energy stored in 0.5 sec in the condenser is

 10 µ joules.
  55.1 µ joules.
 18 µ joules.
 20 µ joules.

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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?

 50 V.
 30 V.
 60 V.
 20 V.

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Electric Circuits
A p.d. of 300 V is applied across series combination of 3 μF and 9 μF capacitors. The charge on each capacitor is ___________________ μC.

 7.5.
 240.
 675.
 3600.

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Electric Circuits
A capacitor that stores charge of 0.5 C at 10 V has a capacitance of _____________ farad.

 0.05.
 10.
 5.
 20.

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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?

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

ANSWER DOWNLOAD EXAMIANS APP
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