Question

Why are coil of wires used in electromagnets instead of straight wires?
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Answer 1

Answer:

A coil of a wire is used in an Electromagnet instead of just a straight wire because coil has many number of loops of wire and each loop of wire behave as a magnet. ... When an electric current flows through the coil , it creates a magnetic field. This produces temporary magnetism in the iron core.

Explanation:

Answer 2

Answer:

A coil wire is used instead of straight wires in electromagnets as it helps produce magnetic fields this way.

Explanation:

The coil wire is used in the coil there are many loops that will help conduct the magnet and when an electric current begins to flow through the coil, it creates an enormous magnetic field. This goes on to produce temporary magnetism within the iron core.