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| What is transistor? |
A transistor is an electronic component that is used to amplify or switch electronic signals. It is a type of semiconductor device that can control the flow of current through a circuit by varying the voltage applied to its terminals.
Transistors are widely used in electronic circuits, including computers, televisions, radios, and many other electronic devices. They come in various shapes and sizes, from tiny surface-mount components to larger through-hole devices.
There are two types of transistors: bipolar junction transistors (BJTs) and field-effect transistors (FETs). BJTs are made of three layers of semiconductor material and have two junctions, while FETs are made of a single layer of semiconductor material and use an electric field to control the flow of current.
Transistors have revolutionized the field of electronics and are considered one of the most important inventions of the 20th century. They have enabled the development of smaller, faster, and more efficient electronic devices, and have paved the way for the digital age we live in today.
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