What is an amplifier?
Q: What is an amplifier?
A: An amplifier is a device that makes an electronic signal or sound louder and stronger.
Q: What is the purpose of an amplifier?
A: The purpose of an amplifier is to enhance an electronic signal or sound so that it can be better heard.
Q: Which electronic devices include amplifiers?
A: Electronic devices that make sound with loudspeakers, such as televisions, radios, computers, and mp3 players, include amplifiers.
Q: What is impedance?
A: Impedance is a measure of the opposition of an electrical circuit to an alternating current.
Q: What is the typical impedance for an amplifier?
A: The typical impedance for an amplifier is 8 ohms.
Q: How can amplifiers be classified?
A: Amplifiers can be classified by the current loss when the amplifier is on, but not receiving a signal.
Q: What is the difference between A-class and B-class amplifiers?
A: A-class amplifiers take more current without a signal than B-class amplifiers, but they have smaller distortion.
