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Electric Circuits

Electric Circuits
The energy stored by a capacitor is given by

 1/2 QV.
 1/2 CV2.
 Q2 / 2C.
 all of them.

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Electric Circuits
Electric field intensity ( E ) at any point in an electric field is equal to

 ( potential gradient )2.
 ( potential gradient )1/3.
 potential gradient.
 ( potential gradient )1/2.

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Electric Circuits
The rms value of the voltage U(t)= 3 + 4cos(3t)

  4.123 V.
  5 V.
 {3 + 2(1.141)} V.
 7 V.

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Electric Circuits
The basic circuit elements are

 both A and B.
None of these
 R, L and C.
 Vs, Is.

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Electric Circuits
If N is the number of nodes and b is the number of branches in a network, then rank of tie set matrix is

 b - N - 1.
 N.
 b - N + 1.
 N - 1.

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Electric Circuits
A 100 ohm resistor is directly connected across a 80 V battery. What is the power dissipation?

 5 W.
  64 W.
 10 W.
 1 W.

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MORE MCQ ON Electric Circuits

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