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capacitor microphone - Microphone whose operation depends on variations in capacitance caused by varying air pressure on the movable plate of a capacitor.
carbon microphone - Microphone whose operation depends on pressure variation in carbon granules causing a change in resistance.
microphone - Electroacoustic transducer that converts sound energy into elecric energy.
moving coil microphone - Microphone that uses a moving coil within a fixed magnetic field. Dynamic microphone.

Audio
Audio Components Audio components convert sound waves into currents and currents into sounds. Devices that convert sound waves to electrical current are normally know as microphones and devices that


Drawing Circuits
Drawing Circuits When designing circuits it is not practical to draw physical likenesses of the components you wish to use. In place of each component a symbol is use to represent it. For example:

Components
Electronic Components There are thousands and thousands of different electrical components, luckily they can be grouped together into parts that have similar functions. In this section we will go t