A ferromagnetic substance becomes a permanent magnet when it is placed in a magnetic field because:

Options

A. all the domains get oriented in the direction of magnetic field
B. all the domains get oriented in the direction opposite to the direaction o magnetic field
C. Domains get ori ented randomy
D. Domains are not affected by magnetic field

Answer

A

Explanation

when a ferromagnetic substance is placed in a magnetic field it becacomes a permanent mangnet magnet because all the dominas get oriented in the directions of magnetic field even after removal of applied magnetic field.