electromagnet project working model | science project | diy | howtofunda
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An electromagnet consists of a coil of wire, often wound around a ferromagnetic core (like iron). When an electric current flows through the wire, it generates a magnetic field around the coil. This magnetic field can be manipulated by adjusting the electric current, allowing the strength of the magnet to be increased or decreased as needed.

Explanation Video : https://www.youtube.com/watch?v=6KCc6H6uLro
Website : http://howtofunda.com/electromagnet-project-working-model-for-school-science-exhibition-diy/