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Magnetism and Electromagnetism

Magnetism and Electromagnetism
The susceptibility of paramagnetic materials generally lies between

1CT3 and 1CT7
KT4 and KT8
10"2 and KT5
KT3 and 1CT6

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Magnetism and Electromagnetism
The relative permeability is less than unity is case of

Ferrits
Paramagnetic material
Diamagnetic material
Ferromagnetic material

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

Non-magnetic substances
Transformers
Permanent magnets
Electromagnets

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Magnetism and Electromagnetism
Susceptibility is positive for

non-magnetic substances
ferromagnetic substances
None of these
diamagnetic substances

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Magnetism and Electromagnetism
What is the magnitude and the direction of force per 1.1m length of a pair of conductors of a direct current linecarrying 10 amperes and spaced 100 mm apart ?

22 x 10-6 N
22 x 10"7 N
22 x 10"5 N
22 x 10"8 N

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Magnetism and Electromagnetism
Tesla is a unit of

Inductance
Flux density
Field strength
Flux

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