2. USES OF MAGNETS: 1.Magnets are used to seal refrigerator doors. 2. Magnets are used in magnetic compass, doorbells, electronic appliances, laptops. 3. It is used in Maglev trains. 4. Magnets are used in dynamos, motors, loudspeakers, TV's, Radio's, microphones etc. 5. Magnets are used inside a generator to transform mechanical energy to electrical energy
3. Defination: Magnetism is the non-contact force exerted by magnets when they attract or repel each other.
4. Properties: 1. Like poles repel and unlike poles attract. (North and north = repels, south -north= attracts) 2. Magnetic attraction is maximum at the ends 3 Whenever a magnet is suspended freely in mid-air, it always points towards the north-south direction.
