A metal sheet is placed in front of a strong magnetic pole. A force is needed to

A metal sheet is placed in front of a strong magnetic pole. A force is needed to

A
hold the sheet there if the metal is magnetic
B
hold the sheet there if the metal is non-magnetic
C
move the sheet away from the pole with uniform velocity if the metal is magnetic
D
move the sheet away from the pole with uniform velocity if the metal is non-magnetic

Solution:

If the metal is non – magnetic, but it may be conductor, then N and S – faces will be

created due to change of flux

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