Question

What is the device which make
use of directional property of
magnet, Make a short note on
magnetic compass?

Answer 1

Explanation:

When magnet is left freely on a horizontal surface, it aligns itself in geographic north to south direction. 

As earth also have magnetic property thus by convection its geographic north is taken as magnetic south pole and towards this direction is north of magnet as opposite poles attract.

Application of this can be seen in magnetic compass which always points towards north.