Poles Of Magnet
Key Notes :
1. Magnet Basics
- A magnet is a material that produces a magnetic field and attracts certain metals, like iron, nickel, and cobalt.
- Magnets have two poles: the North Pole and the South Pole.
2. Magnetic Poles
- The North Pole is the end of the magnet that points towards the Earth’s magnetic north.
- The South Pole is the end of the magnet that points towards the Earth’s magnetic south.
- Like poles repel each other (North repels North, South repels South).
- Opposite poles attract each other (North attracts South, South attracts North).
3. Behavior of Magnetic Poles
- If a magnet is broken into two pieces, each piece will have both a North and a South pole.
- Magnetic poles never exist alone in nature. There are always two poles in a magnet, no matter how small the piece is.
4. Earth as a Magnet
- The Earth itself acts like a giant magnet, with a magnetic field and North and South poles.
- The Earth’s magnetic north pole is located near the Geographic South Pole, and the magnetic south pole is near the Geographic North Pole.
5. Magnetic Field
- The magnetic field surrounds the magnet and is strongest at the poles.
- The magnetic field lines flow from the North Pole to the South Pole outside the magnet and from the South Pole to the North Pole inside the magnet.
6. Uses of Magnets
- Magnets are used in compasses, motors, and generators.
- The poles of magnets help in navigation, as the North Pole of a compass needle always points to the Earth’s magnetic North.
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