Electrostatics Mcqs

This set of Electrical engineering Multiple Choice Questions & Answers (MCQs) focuses on study of “Electrostatics”. These questions are chosen from a collection of most authoritative and best reference books on Electrical engineering. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, University and College entrance exams, Jobs and interviews. One should practice our MCQS to assimilate Electrostatics Mcqs comprehensively.

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1.
A 5 μF capacitor has a potential difference across its plates of 200 volts. The charge on the capacitor is____________?

2.5 x 10-8 C

10-5 C

103 C

4 x 103 C

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2.
Equivalent capacitance is greater than individual capacitances in_____________?

Series combination

Parallel combination

Both series and parallel combinations

None of above

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3.
The number of electrons in one coulomb charge is equal to_______________?

6.2 x 1018

1.6 x 1019

6.2 x 1021

1.6 x 10-27

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5.
Value of εr for various dielectrics is always________________?

Less than unity

Equal to the unit

Larger than unit

No hard and fast rule

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9.
Photocopier and inject printer are dealt in________________?

Electrostatics

Charges in motion

Capacitors

Electric fields

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10.
If a charged rod is brought closer to a gas filled balloon then______________?

Radius decreases

Balloon bursts

Radius increase

Balloon squeezes

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11.
If metallic conductor is charged negatively then its weight______________?

Remains same

First increases then decreases

Decreases then increases

Increases for a while

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12.
If two charges are increased by two times then force_____________?

Decreases 9 times

Increases 9 times

Increases 4 times

Decreases 4 times

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13.
If mica sheet is placed between the plates of a capacitor the capacity_______________?

Increases

Decreases

Increases then decreases

Decreases then increases

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14.
If an electrons is allowed to move along the field in a non uniform electric field then it will follow__________________?

Spiral path

Straight line

Curved path

Circular path

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15.
Selenium becomes a conductor in light so it behaves like____________?

Semiconductor

Photodiode

Light emitting diode

Capacitor

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