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Magnetism and Electromagnetism

Magnetism and Electromagnetism
Which of the following is not a unit of flux?

All of the listed here
Maxwell
Tesla
Weber

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Magnetism and Electromagnetism
How does the magnetic compass needle behave in a magnetic field?

It assures a position which follows a line of magnetic flux
It starts rotating
None of the listed here
It assures a position right angle to magnetic field

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

ferromagnetic material
diamagnetic material
paramagnetic material
conducting 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
a force of attraction
no force

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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/4
2M
M
M/2

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Magnetism and Electromagnetism
Magnetism of a magnet can be destroyed by

Heating
Hammering
By inductive action of another magnet
All of the listed here

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