Magnetism. — Science STD 8 — Question

• A compass needle, also known as plotting compass or magnetic needle, consists of a tiny pivoted magnet in the form of a pointer, which can rotate freely in the horizontal plane.
• The ends of the compass needle point approximately towards the geographic north and south direction.

2. Magstripe:

• A strip on the back of a credit card/debit card is a magnetic strip, often called a magstripe.
• The magstripe is made up of tiny iron-based magnetic particles in a thin plastic film.