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Electric Circuits

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

 N - 1.
 b - N + 1.
 b - N - 1.
 N.

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Electric Circuits
When power factor angle is constant, then shape of the current locus is

 circle.
 semi circle.
 triangle.
 straight line.

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Electric Circuits
Which cell has the reversible chemical reaction?

 Silver oxide.
 Mercury oxide.
 Lead acid.
 Carbon Zinc.

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

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

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Electric Circuits
In foster 1 form 1st element is

 none.
 inductor.
 capacitor.
 both.

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Electric Circuits
A conductor of length l meters moves at right angles to a uniform magnetic field of flux density B = 1.5 T. if the velocity of revolution of the conductor is 50 ms-1 then induced e.m.f. in the conductor is

 0 V.
 75 V.
 125 V.
 100 V.

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MORE MCQ ON Electric Circuits

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