Seema has a magnet and a safety pin.
a) What can Seema do with the safety pin to turn the safety pin into a magnet?
b) What is this method known as?
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Answer:
a.
Take two magnets. Put the North pole and the South pole on the middle of the iron. Draw them towards their ends, repeating the process several times. Take a steel bar, hold it vertically, and strike the end several times with a hammer, and it will become a permanent magnet.
b.
The method is : Powder Metallurgy
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