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Magnetism and Electromagnetism

Magnetism and Electromagnetism
Which of the following is a ferromagnetic material?

Tungsten
Nickel
Copper
Aluminium

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Magnetism and Electromagnetism
Which of the following materials are diamagnetic?

Silver
Silver and copper
Iron
Copper

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Magnetism and Electromagnetism
The uniform magnetic field is

None of the listed here
The field of a single conductor
The field in which all lines of magnetic flux are parallel and equidistant
The field of a set of parallel conductors

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Magnetism and Electromagnetism
Indicate which of the following material does not retain magnetism permanently.

None of the listed here
Soft iron
Hardened steel
Stainless steel

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Magnetism and Electromagnetism
When the current through the coil of an electromagnet reverses, the

direction of the magnetic field reverses
magnetic field expands
magnetic field collapses
direction of the magnetic field remains unchanged

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Magnetism and Electromagnetism
In the left hand rule, forefinger always represents

direction of force on the conductor
Voltage
magnetic field
current

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MORE MCQ ON Magnetism and Electromagnetism

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