10 Types of Microphones


Dynamic Microphones

Dynamic microphone
Dynamic microphone
©iStockphoto.com/Kevin Russ

A dynamic microphone takes advantage of electromagnet effects. When a magnet moves past a wire (or coil of wire), the magnet induces current to flow in the wire. In a dynamic microphone, the diaphragm moves either a magnet or a coil when sound waves hit the diaphragm, and the movement creates a small current.