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:
“The gain is not the having of children; it is the discovery of love and how to be loving.”
—Polly Berrien Berends (20th century)
“For what shall it profit a man, if he shall gain the whole world, and lose his own soul?”
—Bible: New Testament Jesus, in Mark, 8:36.
“We go to gain a little patch of ground
That hath in it no profit but the name.”
—William Shakespeare (1564–1616)