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Magnetism and Electromagnetism

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

Aluminium
Tungsten
Nickel
Copper

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Magnetism and Electromagnetism
What is the magneto-motive force in a 75-turn coil of wire when there are 4 A of current through it?

30 AT
300 AT
3 AT
0.3 AT

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Magnetism and Electromagnetism
Which of the following is expected to have the maximum permeability ?

Zinc
Copper
Brass
Ebolite

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Magnetism and Electromagnetism
A material which is slightly repelled by a magnetic field is known as

ferromagnetic material
conducting material
paramagnetic material
diamagnetic material

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Magnetism and Electromagnetism
When the north poles of two bar magnets are brought close together, there will be

a force of repulsion
a downward force
no force
a force of attraction

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Magnetism and Electromagnetism
The initial permeability of an iron rod is

The permeability at the end of the iron rod
The highest permeability of the iron rod
The permeability almost in non-magnetised state
The lowest permeability of the iron rod

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MORE MCQ ON Magnetism and Electromagnetism

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