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Electric Circuits

Electric Circuits
Energy efficiency during electroplating is usually in the range

 90 to 99%.
 85 to 90%.
 50 to 80%.
 80 to 85%.

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Electric Circuits
A capacitor carries a charge of 0.1 C at 5 V. Its capacitance is

 0.05 F
 0.02 F
 0.2 F
 0.5 F

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Electric Circuits
Condition for a balanced 3 - phase load is that, each phase has the same value of __________________.

 power factor.
 all of these.
 impedance.
 resistance.

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Electric Circuits
Reciprocity condition for h parameters is

 h12 = h21.
 h12 = h21.
 h11h22 - h21h12 = 0.
 h12 = - h21.

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Electric Circuits
A coil of negligible resistance has an induction of 100 mH. The current passing through the coil changes from 2 A to 4 A at a uniform rate in 0.1 sec the voltage across the coil during this time would be __________ V.

 2
 8
 50
 36

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Electric Circuits
Total power consumed in the circuit below is 10 W. Find X.

 None of these.
 1 A.
 3 A.
  2 A.

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