Chapter 7.3, Problem 19R

To determine

To Define: Electromagnetic induction and the way that a generator uses electromagnetic induction.

Explanation of Solution

Introduction: Electromagnetic induction is important for generation and transmission of electrical energy.

The process of generation of an electric current by a changing magnetic field is known as electromagnetic induction.

A generator makes use of electromagnetic induction to change mechanical energy into electrical energy. The generator has a wire coil between the poles of a permanent magnet. As the coil rotates in the magnetic field generated by the permanent magnet, a current flow through the coil.

Conclusion: A generator transforms mechanical energy into electrical energy, using electromagnetic induction, as the coil rotates through the magnetic field of a permanent magnet, generating current.