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Magnetism and Electromagnetism

Magnetism and Electromagnetism
The bar magnet has

Monopole moment
None of the listed here
Dipole moment
Both dipole and monopole moment

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Magnetism and Electromagnetism
The retentivity of material is useful for the construction of

Electromagnets
Transformers
Non-magnetic substances
Permanent magnets

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Magnetism and Electromagnetism
For which of the following materials the saturation value is the highest?

Ferrites
Paramagnetic materials
Ferromagnetic materials
Diamagnetic materials

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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/2
M/4
M
2M

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Magnetism and Electromagnetism
Which of the following is a vector quantity?

Magnetic field intensity
Magnetic potential
Flux density
Relalative permeability

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Magnetism and Electromagnetism
For a given wire-wound core, an increase in current through the coil

Reverses the flux lines
Causes no change in flux density
Increases the flux density
Decreases the flux density

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MORE MCQ ON Magnetism and Electromagnetism

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