directional property of magnet is used in making
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Answer:
TWO USES OF DIRECTIONAL PROPERTY
OF MAGNET are :
Finding Directions
The property of a freely suspended magnet to align itself always along the North-South of the earth is used to find directions at unknown places.
(1) For centuries, travellers on land and at sea have been using this property of magnets to find directions.
(2) In olden days, travellers to far off places used to carry natural magnets (which were strips of magnetite) and thread with them. They used to find directions along their way by suspending the natural magnet with a thread.
When artificial magnets were available, an instrument (or device) called compass was developed to find the directions more conveniently. In a compass, the magnet is not suspended from a thread. The tiny magnet in a compass is free to turn (or rotate) on a pivot or pin. It is called freely pivoted magnet. Just like a freely suspended magnet, a freely pivoted magnet also always comes to rest along the north-south direction.
Compass
(1) The compass is an instrument to find the directions at a place. The compass is based on the property of a freely pivoted magnet to align itself along the north-south direction.
(2)The compass has a tiny magnet in the form of a needle which can rotate freely on a pivot (or pin).
(3)The pivoted magnetic needle of the compass is enclosed in a small brass box having a glass top.
(4) The compass has a circular dial with various directions marked on it. The needle of compass always comes to rest along the north-south direction.
(5)The north pole of compass needle is painted with a different colour to distinguish it from the south pole.
(6) To find the directions at a place, the compass is kept on a flat surface at that place. The needle of compass will soon come to rest (or become stationary) along the north-south direction. The compass is then rotated until the painted end of needle is towards N mark on the dial and the other end of needle is towards S (South) mark on the dial.