Encyclopedia > Amplifier

  Article Content


An amplifier is a device which changes a small movement into a larger movement. However, in general the most common and useful amplifiers actually use a small amount of energy to control a larger amount of energy. Furthermore it is of significant advantage if the amplified output is in a linear relationship with that of the input. This relationship is known as the gain of the amplifier.

The most common type of amplifier is the electronic amplifier, commonly used in radio and television transmitters and receivers.

All Wikipedia text is available under the terms of the GNU Free Documentation License

  Search Encyclopedia

Search over one million articles, find something about almost anything!
  Featured Article
St.Louis Gunners

... Gunners - Wikipedia <<Up     Contents St.Louis Gunners The St.Louis Gunners an independent team played the last 3 games of the 1934 ...