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Electric Circuits

Electric Circuits
Voltage magnification will occur in which of the following case?

 Parallel resonance
 Both
 Series resonance
None of these

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Electric Circuits
Which of the following quantities remain the same in all parts of a parallel circuit

 resistance.
 power.
 current.
 voltage.

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Electric Circuits
Ampere second is the unit of

 energy.
 power.
 conductance.
 charge.

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Electric Circuits
Consider the following circuit : Switch is closed at t = 0 Find i(0 +)

 0.
 V/R.
 V / {R + (sL + 1 / Cs)}.
 (V*L) / (R*C)

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Electric Circuits
If a large resistance is connected in parallel to a small resistance then net resistance will be

 greater than the large resistance.
 smaller than the greater but larger than the smaller resistance.
 smaller than the small resistance.
None of these

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Electric Circuits
In direct arc furnace which of following is of high value?

 Power factor.
 All of above.
 Voltage.
 Current.

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