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Electric Circuits

Electric Circuits
Which of following capacitors has relatively shorter shelf life?

 Glass.
 Paper.
 both (B) and (C) above.
 Electrolytic.

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Electric Circuits
Which property is used to oppose the flow of current ?

 Inductance
 Capacitance
 Resistance
 Poteintial difference

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Electric Circuits
Four bulbs of 40 W each are connected in series with a battery across them, which of the following statement is true?

None of these
 The voltage across each bulb is not same.
 The current through each bulb is same.
 The power dissipation in each bulb is not same.

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Electric Circuits
Time constant is the time taken for response to rise -------of maximum value?

 68.3%
 63.2%
 90%
 100%

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Electric Circuits
The unit of electric field intensity is

 F / m.
 N / Ampere.
 N / C.
 F/ m2.

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Electric Circuits
What is called the frequency in AC operation?

 No. of cycles made per second.
 No. of (+) ve quadrature made per second.
 No. of wave made per second.
 No. of (-) ve quadrature made per second.

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