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Magnetism and Electromagnetism

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/2
2M
M
M/4

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Magnetism and Electromagnetism
Core of an electromagnet should have

Low coercivity
High susceptibility
Both low coercivity and high susceptibility
None of the listed here

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Magnetism and Electromagnetism
The two conductors of a transmission line carry equal current I in opposite directions. The force on each conductor is

proportional to X
proportional to distance between the conductors
inversely proportional to I
proportional to 7

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Magnetism and Electromagnetism
The unit of flux is the same as that of

Resistance
Pole strength
Permanance
Reluctance

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Magnetism and Electromagnetism
Substances which have permeability less than the permeability of free space are known as

Diamagnetic material
Paramagnetic material
Bipolar
Ferro magnetic material

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Magnetism and Electromagnetism
Unit for quantity of electricity is

Joule
Ampere
Coulomb
Ampere-hour

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MORE MCQ ON Magnetism and Electromagnetism

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