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Electric Circuits

Electric Circuits
Flux in a magnetic circuit can be compared in an electric circuit to

 inductance.
 voltage.
 current.
 resistance.

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Electric Circuits
Two battery having unequal emf

 both a and d
 can be connected in series only.
 cannot be connected in parallel.
 cannot be connected in series.

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Electric Circuits
In active filter which element is absent?

 Capacitor.
 Inductor.
 Resistor.
 Both of above.

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Electric Circuits
If a resistor is connected across the voltage source and the frequency of voltage and current wave form is 50Hz, then what is frequency of instantaneous power

 150 Hz.
 50 Hz.
 100 Hz.
 0 Hz.

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Electric Circuits
Purpose of using capacitor is / are

 all of these.
 effect DC filter in electronic circuit.
 increase p.f of inductive load circuit.
 to do phase split in AC 1 phase motor.

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Electric Circuits
A reactance having an inductor of 0.15 H is connected in series with 10 Ω resistance. What will be the inductive reactance?

 47.1 Ω.
 1.5 Ω.
 None of these.
 48.15 Ω.

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MORE MCQ ON Electric Circuits

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