Gain
In electronics, gain is a measure of the ability of a circuit (often an amplifier) to increase the power or amplitude of a signal from the input to the output. It is usually defined as the mean ratio of the signal output of a system to the signal input of the same system. It may also be defined on a logarithmic scale, in terms of the decimal logarithm of the same ratio ("dB gain"). A gain greater than one (zero dB), that is, amplification, is the defining property of an active component or circuit, while a passive circuit will have a gain of less than one.
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Famous quotes containing the word gain:
“A gain is no joy, nor a loss any grief.”
—Chinese proverb.
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—Pierre Corneille (1606–1684)
“Give instruction to the wise, and they will become wiser still; teach the righteous and they will gain in learning.”
—Bible: Hebrew, Proverbs 9:9.