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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.
 N.
 b - N - 1.
 b - N + 1.

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Electric Circuits
A star connected load has three equal impedance each of (40 + j30) Ω If the line current is 5 A then value of line voltage is

 250 √3 V.
 200 V.
 250 V.
 250 / √3 V.

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Electric Circuits
A series circuit consists of R = 20 Ω, L = 20 mH, and AC supply 60 V with f = 100 Hz. The voltage drop across R is

  50.8 V.
  30.6 V.
 40.8 V.
 24.4 V .

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Electric Circuits
The phase angle difference between current and voltage is 90o, the power will be

 VI.
 minimum.
 maximum.
 zero.

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Electric Circuits
In RL series circuit R=2Ω and L=10mH and applied voltage is 10V DC. Then find the current in the network?

 0A
 5A
 10A
 1A

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Electric Circuits
For the circuit shown in the given figure the current I is given by

 3 A.
 1 A.
 2 A.
 4 A.

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MORE MCQ ON Electric Circuits

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