I show experimentally how an electromagnet works and what depends the intensity of the magnetic field on.

The more turns the more intense the magnetic field. The same with current intensity in the conductor. Other factor is the nature of the core surrounded by the coil. With a high magnetic permeability material, the magnetic field is concentrated and implified, getting more intensity.

https://en.wikipedia.org/wiki/Electro...
https://en.wikipedia.org/wiki/Solenoid
https://en.wikipedia.org/wiki/Permeab...)
https://en.wikipedia.org/wiki/Magneti...
https://en.wikipedia.org/wiki/Ampere-...
https://en.wikipedia.org/wiki/Magneto...
https://en.wikipedia.org/wiki/Magneti...
https://en.wikipedia.org/wiki/Magnetism

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