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MAGNETISM AND ELECTROMAGNETISM

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

Paramagnetic materials
Diamagnetic materials
Ferrites
Ferromagnetic materials

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Magnetism and Electromagnetism
Magnetic moment is a

universal constant
pole strength
scalar quantity
vector quantity

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Magnetism and Electromagnetism
A 300 mm long conductor is carrying a current of 10 A and is situated at right angles to a magnetic field having a flux density of 0.8 T ; the force on the conductor will be

24 N
2.4 N
0.24 N
240 N

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

conducting material
paramagnetic material
diamagnetic material
ferromagnetic material

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Magnetism and Electromagnetism
The change of cross-sectional area of conductor in magnetic field will affect

None of these
resistance of conductor
both of the listed here
reluctance of conductor

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