FARADAY'S LAW
When a wire is moved across a magnetic field, a small e.m.f. is produced in the wire. This effect is called electromagnetic induction; an e.m.f. is induced.
In a complete circuit, an induced e.m.f. causes an induced current to flow.
3 factors essential for electromagnetic induction1. magnetic field; 2. wire, and 3. movement.
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