Three identical specimens of magnetic ma...

Three identical specimens of magnetic materials nickel, antimony and aluminium are kept in a non-uniform magnetic field. Draw the modifications in the field lines in each case. Justify your answer.

Text Solution

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The modifications in field lines are as shown in figure. This is because, Nickel is ferromagnetic, Antimony is diamagnetic and Aluminium is paramagnetic.

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In a non-uniform magnetic field a diamagnetic material moves

from weaker to stronger part of the field.

perpendicular to the field.

from stronger to the weaker part of the field.

in any random direction.

A magnetic needle is kept in a non-uniform magnetic field. It experiences

a force and a torque.

a force but not a torque.

a torque but not a force.

neither a force nor a torque

A magnetic needle is kept in a non uniform magnetic field . It experiences

a force and a torque

a force but not a torque

A torque but not a force