When I increase the number of coils of wire, the strength of an electromagnet is stronger. Can you explain it using easy scientific words?

iroroPagbublh

iroroPagbublh

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2022-08-16

When I increase the number of coils of wire, the strength of an electromagnet is stronger. Can you explain it using easy scientific words?

Answer & Explanation

alienceenvedsf0

alienceenvedsf0

Beginner2022-08-17Added 15 answers

Current - moving electrons - makes a magnetic field. If you have a long straight wire with a current flowing in it, the entire wire has a magnetic field around it. If you put a nail near the wire, the magnetic field will exert a force on the nail.
The force is stronger if the nail is near the wire. A nail can only be near a small section of a long straight wire.
One way to make the force stronger is to put more wire next to the nail. Wrapping the wire into a coil does this. The more coils you have, the more wire is near the nail.
This glosses over a few things. For example, direction is important. The coils all have to run the same way. This explanation just gives a feel for the idea. If you want more detail, it gets mathematical.
darcybabe98ub

darcybabe98ub

Beginner2022-08-18Added 6 answers

In metals are tiny particles, called electrons, and we are able to make them flowing through wires.
If you make a coil from a wire and connect the ends of the wire to the poles of a battery the flowing electrons in the coil produce a magnetic field.
Even one turn of the wire makes a magnetic field and for each winding of the wire the magnetic field gets stronger.
For you: There is a saturation of this field and adding more and more windings does not increase the strength of the field to infinity.

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