<h1 class=”banner-heading”>Magnetism and Electromagnetism Mcqs</h1>
This set of Electrical engineering Multiple Choice Questions & Answers (MCQs) focuses on study of “Magnetism and Electromagnetism”. 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 Magnetism and Electromagnetism comprehensively.

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1.
Fleming’s left hand rule is used to find_________________?

Direction of magnetic field due to current carrying conductor

Direction of flux in a solenoid

Direction of force on a current carrying conductor in a magnetic field

Polarity of a magnetic pole

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2.
Magnetising steel is normals difficult because____________?

It corrodes easily

It has high permeability

It has high specific gravity

It has low permeability

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3.
When an iron piece is placed in a magnetic field_____________?

The magnetic lines of force will bend away from their usual paths in order to go away from the piece

The magnetic lines of force will bend away from their usual paths in order to pass through the piece

The magnetic field will not be affected

The iron piece will break

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4.
The ratio of intensity of magnetisation to the magnetisation force is known as_____________?

Flux density

Susceptibility

Relative permeability

None of the above

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5.
Materials subjected to rapid reversal of magnetism should have______________?

Large area oiB-H loop

High permeability and low hysteresis loss

High co-ercivity and high retentivity

High co-ercivity and low density

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6.
The unit of relative permeability is_____________?

Henry/metre

Henry

Henry/sq. m

It is dimensionless

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7.
Indicate which of the following material does not retain magnetism permanently

Soft iron

Stainless steel

Hardened steel

None of the above

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8.
The force between two long parallel conductors is inversely proportional to_____________?

Radius of conductors

Current in one conductor

Product of current in two conductors

Distance between the conductors

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9.
The left hand rule correlates to______________?

Current, induced e.m.f. and direction of force on a conductor

Magnetic field, electric field and direction of force on a conductor

Self induction, mutual induction and direction of force on a conductor

Current, magnetic field and direction of force on a conductor

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10.
A conductor of length L has current I passing through it, when it is placed parallel to a magnetic field. The force experienced by the conductor will be______________?

Zero

BLI

B2LI

BLI2

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11.
The use of permanent magnets is. not made in_____________?

Magnetoes

Energy meters

Transformers

Loud-speakers

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12.
Two infinitely long parallel conductors in vacuum any separated 1 metre between centers >then a current of 1 ampere flows the. uk each conductor, produce on each other a force of_________________?

2 x 1(T2 N/m)

2 x KT3 N/m

2 x 10″5 N/m

2x 1(T7 N/m)

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14.
Paramagnetic materials have relative permeability________________?

Slightly less than unity

Equal to unity

Slightly more than unity

Equal to that ferromagnetic mate rials

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15.
Gilbert is a unit of_______________?

Electromotive force

Magnetomotive force

Conductance

Permittivity

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