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Magnetism and Electromagnetism

Magnetism and Electromagnetism
Which of the following materials are diamagnetic?

Iron
Silver and copper
Silver
Copper

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Magnetism and Electromagnetism
A rectangular magnet of magnetic moment M is cut into two piece of same length, the magnetic moment of each piece will be

M
M/4
2M
M/2

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

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

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Magnetism and Electromagnetism
Which of the following type of materials are not very important for engineering applications?

Diamagnetic material
Ferro magnetic material
None of the listed here
Paramagnetic material

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Magnetism and Electromagnetism
The direction of magnetic lines of force is

From north pole to south pole
From one end of the magnet to another
From south pole to north pole
None of the listed here

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Magnetism and Electromagnetism
The materials are a bit inferior conductors of magnetic flux than air.

None of the listed here
Dielectric
Diamagnetic
Ferromagnetic

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MORE MCQ ON Magnetism and Electromagnetism

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