Electromagnetism Mcqs

Our collections of Multiple choice questions and answers focuses on study of Electromagnetism in Physics. These questions are chosen from a collection of most authoritative and best reference books on Physics. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, MDCAT, Teaching jobs Tests and Chemical industry job interviews. One should practice our Mcqs to assimilate knowledge on Electromagnetism in Physics comprehensively.

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Computer MCQS

Sciences MCQS

16.
If the plane of the rectangular coil is parallel to the magnetic field (i.e radial magnetic field) the torque on the coil is

? = NIAB cos?

? = NIAB sin?

? = NIAB tan?

? = NIAB

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17.
In a multi range ammeter as the range increases

Shunt value decreases

Shunt value increases

Shunt value remains the same

None of the above

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18.
Magnetic flux and flux density are related by

Magnetic flux = flux density / area

Magnetic flux = flux density x area

Flux density = magnetic flux area

Flux density = magnetic flux x area

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19.
Magnetic force acting on a unit positive charge moving perpendicular to the magnetic field with a unit velocity is called

Magnetic flux

Magnetic field intensity

Magnetic induction

Self inductance

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20.
Minimum current required to produce a deflection of 1 mm on a scale at a distance of 1 meter is

0.1 A

1:00 AM

Current sensitivity

1 m A

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22.
The charged particle enters the uniform magnetic field in such a way that its initial velocity is not perpendicular to the field the orbit will be

A circle

A spiral

An ellipse

Helix

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23.
The deflection for 50 division of galvanometer is decreased to 25 divisions by shunt resistance of 12?. Galvanometer resistance is

18?

30?

24?

12?

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24.
The effective way to increase the sensitivity of a moving coil galvanometer is to

Use a very long and fine suspension

Use a coil of very large area

Use a coil with very large number of turns

Use a very strong magnetic field

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26.
The magnetic force experienced by a charge particle moving in a magnetic field will be minimum when it moves

Perpendicular to the field

Parallel to the field

Inclined parallel to the field

At an angle of 45?

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27.
The relationship between Tesla and smaller unit Gauss of magnetic induction is given by

1T = 103 G

1T = 10-4 G

1T = 10-2 G

1T = 104 G

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30.
Two parallel wires carrying currents in the opposite directions

Repel each other

Attract each other

Have no effect upon each other

They cancel out their individual magnetic fields

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Engineering MCQS

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