Magnets are very useful for human life. We have encountered many tools using magnets. For example compass, dynamos, electric bell, aircraft telephone and many more other examples. Magnets can attract other objects. Is it true magnet? Can all the objects drawn by a magnet? Whether we can make the magnet?
Usefulness magnet
Various kinds of tools that use magnets include:
a. Scissors, drei, compass, pencil
b. Magnets are also used in power tools, motors, dynamos, electric and telephone bell
c. In the crane there is a useful electrical magnet to attract and move scrap metal and sheets of iron. Magnetic properties of magnetic electricity only temporary. When electric current is disconnected, the nature of magnetism is lost so that the load is attached will fall.
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