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Magnetism and Electromagnetism

Magnetism and Electromagnetism
The ability of a material to remain magnetized after removal of the magnetizing force is known as

reluctance
retentivity
hysteresis
permeability

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

Tesla
Maxwell
Weber
All of the listed here

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Magnetism and Electromagnetism
The magnetic materials exhibit the property of magnetisation because of

spin of nucleus
spin of electrons
orbital motion of electrons
either of these

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Magnetism and Electromagnetism
Temporary magnets are used in

Motors
Generators
All of the listed here
Loud speakers

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Magnetism and Electromagnetism
Tesla is a unit of

Flux
Field strength
Flux density
Inductance

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

Dielectric
Diamagnetic
Ferromagnetic
None of the listed here

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