What is an Amplifier and Why Do We Need It

An amplifier is a type of electronic equipment that boosts the amplitude of a signal and, thus, makes it stronger without changing the nature of the signal. An amplifier is employed to amplify audio, radio frequencies, or electrical signals for better sound, longer transmission, or greater performance within different systems. Amplifiers find applications in sound systems, telecommunications, broadcasting, and medical devices. They exist in various forms, such as audio, power, and operational amplifiers, all created for special purposes. In the absence of amplifiers, feeble signals would be to

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