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Electric Circuits

Electric Circuits
In the figure, the potential difference between points P and Q is

 10 V.
 - 6 V.
 6 V.
 12 V.

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Electric Circuits
Under resonance condition the power factor of a system is

 any of the above
 leading
 unity
 lagging

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Electric Circuits
If the sheet of a backelite is inserted between the plates of an air capacitor, the capacitance will

 remains unchanged.
 increase.
 decrease.
 becomes zero.

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Electric Circuits
Addition of which of the following substance in electrolyte helps in producing bright finish?

 Dextrol.
 Any of above.
 Phenol.
 Glycerine.

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Electric Circuits
In RLC series circuit R = 2Ω, L = 2mH and C = 1μF and applied voltage is 10V DC. Then what is steady state current value?

 0A
 5A
 2A
 1A

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Electric Circuits
When AC flows through a pure capacitance then the current

 leads the emf by 90o.
 lags the emf by 90o.
 is in phase with emf.
 leads the emf by - 90o.

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MORE MCQ ON Electric Circuits

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