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

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

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Magnetism and Electromagnetism
When an iron piece is placed in a magnetic field

the iron piece will break
the magnetic lines of force will bend away from their usual paths in order to pass through the piece
the magnetic field will not be affected
the magnetic lines of force will bend away from their usual paths in order to go away from the piece

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