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Magnetism and Electromagnetism

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

Ferrites
Paramagnetic materials
Diamagnetic materials
Ferromagnetic materials

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Magnetism and Electromagnetism
The susceptibility of paramagnetic materials generally lies between

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

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Magnetism and Electromagnetism
A magnetic field exists around

Copper
Iron
Aluminium
Moving Charges

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Magnetism and Electromagnetism
A keeper is used to

Change the direction of magnetic lines
Restore lost flux
Amplify flux
Provide a closed path for flux

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Magnetism and Electromagnetism
Which of the following type of materials are not very important for engineering applications?

Ferro magnetic material
Diamagnetic material
None of the listed here
Paramagnetic material

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

Weber
Tesla
Maxwell
All of the listed here

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