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Electric Circuits

Electric Circuits
In the circuit shown in the figure, the value of Vs is 0, when I = 4 A. The value of I, when Vs = 16 V, is

 8 A.
 12 A.
 6 A.
 10 A.

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Electric Circuits
A capacitor is charged by a constant 10 mA current sources which is turned on for 1 second. Assuming the capacitor is initially charge free; determine the charge delivered to and the power supplied by the source if the capacitor has a value of 1 mF.

 0.1C, 100MW.
 0.01C, 10MW.
 0.1C, 10MW.
 0.01C and 5W.

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Electric Circuits
A current of 4 A flows in an ac circuit when 100 V dc is applied to it whereas it takes 250 v ac to produce the same current the power factor of the circuit is

 1.
 0.4.
 10.
 0.85.

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Electric Circuits
An electrical circuit with 10 branches and 7 nodes will have

  4 loop equations.
 3 loop equations.
  10 loop equations.
 7 loop equations.

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Electric Circuits
In which of the following networks it is not possible to find the transient free response?

 RC
 RLC
 RL, RC, and RLC
 RL

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Electric Circuits
Three identical resistor are connected in star across a 3 phase 550 V supply dissipating a total power of 300 W the line current is ____________ A.

 0.5
 1
 3.149
 2.56

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