Answer:
The process of creating a current in a circuit by changing a magnetic field - electromagnetic induction.
Explanation:
The electromagnetic induction discovered by Michael Faraday, is a process that generates current or voltage in a conductor by placing the conductor in a changing magnetic field.
Here, the magnetic lines of force are applying a force on the free electrons in the conductor and causing them to move. The conductor must be perpendicular to the magnetic lines of force in order to produce the maximum force on the free electrons. There is no physical connection between the conductor and the magnet and the current is said to be induced in the conductor by the magnetic field.
The direction of the induced current is determined by the direction of the magnetic lines of force and by the direction the conductor is moving in the field. The applications of electromagnetic induction include inductors, transformers, electric motors, and generators.
