Q.how can we convert an iron strip into a temporary magnet?
(I search on Goo.gle but there doesn't given the proper answer I mean there was the answer given that how to make a magnet permanently and I want how to make temporary magnet )
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Answers
Answer:
An iron strip can be converted into a magnet by the following method: Place the iron strip on a table. Place one pole of a bar magnet near one end of the iron strip. Move the bar magnet along the length of the iron strip starting from one end to the other end as shown in the following figure.
=> Take a small wire.
=> Take a iron strip.
=> Take a switch and a cell.
=> Wind the wire tightly around the iron strip in the form of a coil. Connect the free ends of the wire to the terminals of a cell through a switch.
=> Keep some pins near the strip.
=> Now, switch on the current.
=> The pins will stuck to the strip.
=> This is known as temporary magnet.
=> If you will switch off the current, the pins will fall means they will not stuck to the strip.