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MAGNETISM AND ELECTROMAGNETISM

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

Diamagnetic materials
Paramagnetic materials
Ferromagnetic materials
Ferrites

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Magnetism and Electromagnetism
Magnetic moment is a

pole strength
scalar quantity
vector quantity
universal constant

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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

240 N
2.4 N
24 N
0.24 N

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

diamagnetic material
paramagnetic material
conducting material
ferromagnetic material

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

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

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