A dynamic microphone consists of which components?

A dynamic microphone operates based on an electromechanical principle, and the key components involved are the diaphragm, coil, and magnet. The diaphragm is a thin, flexible membrane that vibrates in response to sound waves. Attached to this diaphragm is a coil of wire. When sound waves cause the diaphragm to move, the coil also moves within the magnetic field created by a magnet placed nearby. This movement induces an electrical current in the coil, which corresponds to the sound wave's frequency and amplitude, thereby converting sound waves into an electrical signal.

This fundamental operation is what distinguishes the dynamic microphone as a durable and reliable tool for many applications, such as live sound reinforcement and studio recording, particularly where handling high sound pressure levels is required. Each of the other options refers to components that are not integral to the operation of a dynamic microphone. For instance, a condenser microphone might employ a front and back plate within its capsule design, while the mention of a power source and amplifier is more aligned with electric condenser microphones rather than dynamics, which do not need external power to function.