Talk:Electronics/Definitions
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I like the look of the "official" definition syntax, too. Does anyone else like it better? - Omegatron 14:15, 26 May 2004 (UTC)
- AC
- Alternating current. Consists of a periodic oscillation between two different voltages. Usually said to look like a sine wave, but is not always.
- AM
- Amplitude modulation. In radio communications, a signal controls the amplitude of a carrier wave that is at a much higher, constant frequency. The carrier wave is filtered out and a loudspeaker plays based on the amplitude of the signal.
- Ampere, Amp (A)
- The SI unit for current I. Equals a coulomb (1 C) of charged particles moving past a point in one second (1 s).
- Amplify
- To increase the strength of the signal.
- Anode
- An electron collector. Means up the path from a negative to a positive voltage. An anode has a more positive voltage relative to some other place.
- Attenuate
- Decrease the strength of a signal.
- Band-Pass Filter
- An analog filter that absorbs low and high frequencies (f) but allows a band of frequencies in the middle to pass through.
- BJT
- Bi-polar junction transistor. A transistor in which the resistance of the channel is controlled by a current at the gate. Can be thought of as a current-controlled resistor. FET is the other major type of transistor.
- Capacitor
- An electronics component that stores energy in the form of electric charge (static electricity). It resists a sudden change in voltage.
