Question

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

• A. all the domains get oriented in the direction of magnetic field
• B. all the domains get oriented in the direction opposite to the direction of magnetic field
• C. domains get oriented randomly
• D. domains are not affected by magnetic field

Answer 1

Answer: (A)

When a ferromagnetic substance is placed in a magnetic field it becomes a permanent magnet because all the domains get oriented in the direction of magnetic field even after removal of applied magnetic field