What is transistor: A transistor is a semiconductor device that

A transistor is a semiconductor device that can amplify or switch electronic signals and power. Learn about the two types of junction transistors (NPN and PNP), their symbols, terminals, and working mechanisms, and their applications in various fields. A transistor acts as ON/OFF switch or an amplifier. Get basic idea about transistors history, symbols, vacuum tubes, operation modes of transistors , etc. A transistor is a key electronic component used in devices like smartphones and TVs. It has three terminals—base, emitter, and collector—and functions as both an amplifier and a switch. This article covers the basics of transistor types, their structure, and how they work in electronic circuits. With the use of transistors , it has become possible to design electronic devices that are smaller in size, have less power dissipation, and more. Examples include modern smartphones, televisions ...