How Amplifiers Work and Its Types

Key Points

• 1Amplifiers transform human voice and boost it so thousands can hear it at once.
• 2A microphone is a transducer that converts sound to electrical signals.
• 3A simple capacitor consists of two plates facing each other, separated by an air gap.
• 4The preamp acquires the voltage and supplies it with more energy from an external power source while minimising noise.
• 5Power amplifiers come in multiple classes, each for specific applications: Class A, B, AB, C, D.