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

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

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Magnetism and Electromagnetism
The magnetic reluctance of a material

Any of the listed here
Does not vary with increasing cross-sectional area of material
Decreases with increasing cross sectional area of material
Increases with increasing cross-sec-tional area of material

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