Physics, asked by purvadawar25, 1 year ago

Explain the method to make a temporary magnet using a sewing needle.

Answers

Answered by divya936
10
By simply wrapping wire that has an electrical current running through it around a nail, you can make an electromagnet. When the electric current moves through a wire, it makes a magnetic field. If you coil the wire around and around, it will make the magnetic force stronger, but it will still be pretty weak. Putting a piece of iron or steel inside the coil makes the magnet strong enough to attract objects. The strength of an electromagnet can be increased by increasing the number of loops of wire around the iron core and by increasing the current or voltage.

You can make a temporary magnet by stroking a piece of iron or steel (such as a needle) along a permanent magnet. There is another way that uses electricity to make a temporary magnet, called an electromagnet.
Answered by karthikeya333
4
as ambitious man
according to me
magnetic needle is used to sewing machines and also used as in science experiments by children's like me
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