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Electric Circuits

Electric Circuits
In the network shown, what is the current I in the direction shown?

 5 / 6 A.
 0 A.
 1 / 3 A.
 4 A.

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Electric Circuits
In RLC series circuit, if the voltage across capacitor is greater than voltage across inductor, then power factor of the network is

 unity.
 leading.
 zero.
 lagging.

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

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Electric Circuits
For symmetrical wave form average value of one full cycle is

 1
 1.11
 0
 2.22

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Electric Circuits
If a resistor and an inductor are connected in series across a voltage source. Which two parameters in that circuit decrease if frequency of voltage source increases?

 Z and I.
 VL and VR.
 VR and I.
 VL and Z.

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Electric Circuits
Efficiency of electrical machines should be calculated by measuring

 losses.
 losses and input.
 output and input.
 losses and output.

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MORE MCQ ON Electric Circuits

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