Question

In case of a bar magnet, lines of magnetic induction

• A. start from the north pole and end at the south pole
• B. run continuously through the bar magnet and outside
• C. emerge in circular paths from the middle of the bar
• D. are produced only at the north pole like rays of light from a bulb

Answer 1

The correct option is B run continuously through the bar magnet and outside

Magnetic lines of force in a bar magnet are continuous forming closed loops as shown in the figure.

Outside the magnet, the lines run from north pole to south pole whereas oppositely inside.