Electrical Engineering MCQs

Page No. 3

If a charged rod is brought closer to a gas filled balloon then______________?


aRadius decreases


bBalloon bursts


cRadius increase


d Balloon squeezes


View Answer Radius increase

If metallic conductor is charged negatively then its weight______________?


aRemains same


bFirst increases then decreases


cDecreases then increases


d Increases for a while



If two charges are increased by two times then force_____________?


aDecreases 9 times


bIncreases 9 times


cIncreases 4 times


dDecreases 4 times


View Answer Increases 4 times

If mica sheet is placed between the plates of a capacitor the capacity_______________?


aincreases


bdecreases


c increases then decreases


d decreases then increases


View Answer increases

If an electrons is allowed to move along the field in a non uniform electric field then it will follow__________________?


aSpiral path


b Straight line Straight line


cCurved Circular


dCircular path


View Answer Straight line

Selenium becomes a conductor in light so it behaves like____________?


aSemiconductor


bPhotodiode


cLight emitting diode


dCapacitor


View Answer Photodiode

In a charged capacitor the energy resides in________________?


amagnetic hield


belectric field


cnuclear field


dgravitational field


View Answer electric field

A capacitor is a perfect insulator for______________?


adirect current


balternating current


cboth for the direct and alternating current


d none of above


View Answer direct current

A charge of 0.10C accelerated through a potential difference of 1000V acquires kinetic energy_______________?


a200J


b100J


c1000J


d100 eV


View Answer 100J

Electric intensity at infinite distance from the point charge is_____________?


azero


binfinite


cpositive


dnegative



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