Question

In making a simple electromagnet --------------- are used to produce magnetic field. A) static electric charge. B) electric current. C) inclined planes. D) silk filament​

Answer 1

Answer:

electric current is the answer of these question.

Answer 2

Answer:

Option B

Explanation:

An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. ... 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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