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 orrientedd in the direction opposite to the direction of magnetic field.
C. domains get oriented randomly
D. domains are not affected by magnetic field.

Answer

A

Explanation

Ferromagnetic solids can be permanently magnetised and then all the domains get oriented the direction of applied magnetic field.