Electromagnetism - How can electricity create a magnet?
How can electricity create a magnet?
Objects with like charges (positive-positive or negative-negative) repel or push each other away, while objects with opposite charges (positive-negative) attract each other. A magnetic fieldAn area around a magnet where magnetic forces act. can be produced by using electric charges to create attracting or repelling forces. For example, scientists discovered that when a wire is coiled around a piece of iron, and electric current flows through the wire, the iron becomes magnetized—an electromagnet.
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