Science, asked by naisargi93031, 10 hours ago

why is an insulated wire wrapped around the magnetic substance to make electromagnet

Answers

Answered by krissh45

Answer:

The magnetic field disappears when the current is turned off. The wire turns are often wound around a magnetic core made from a ferromagnetic or ferrimagnetic material such as iron; the magnetic core concentrates the magnetic flux and makes a more powerful magnet.

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