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Electric Circuits

Electric Circuits
Which of following capacitor will have least value of breakdown voltage?

 Paper.
 Mica.
 Ceramic.
 Electrolytic.

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Electric Circuits
A rectangular magnet of magnetic moment M is cut into two pieces of same length. The magnetic moment of each piece will be

 2 M.
 M / L.
 M / 2.
 M.

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Electric Circuits
Internal resistance of ideal voltage source is

 zero
 100 ohms
 infinite
 finite

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Electric Circuits
An electrical motor has rating of 10 MVA at 0.8 lag, represented as series RL circuit at a 50 MVA base. Find the impedance value?

 (4 + j3) pu
 (4 + j2 ) pu
 (3 + j4) pu
 (2 + j4) pu

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Electric Circuits
The breakdown voltage for paper capacitor is usually

 20 to 60 volts.
 2000 to 3000 volts.
 more than 10000 volts.
 200 to 1600 volts.

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Electric Circuits
In series RLC circuit which of the following represents the Q factor ?

 VR/V
 XC/R
All of these
 XL/R

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MORE MCQ ON Electric Circuits

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