A transistor is a semiconductor device used to amplify or switch electronic signals and electrical power. It is composed of semiconductor material with at least three terminals for connection to an external circuit. A voltage or current applied to one pair of the transistor's terminals changes the current through another pair of terminals. Because the controlled (output) power can be higher than the controlling (input) power, a transistor can amplify a signal. Today, some transistors are packaged individually, but many more are found embedded in integrated circuits. COUNT 5
QSN1 What is the use of a transistor? ANS1 to amplify or switch electronic signals and electrical power QSN2 What is a transistor made of? ANS2 semiconductor material QSN3 Why does a transistor increase a signal? ANS3 the controlled (output) power can be higher than the controlling (input) power QSN4 What is the minimum amount of external connection terminals to call an item a transistor? ANS4 three QSN5 Where are most transistors found? ANS5 embedded in integrated circuits