Transistors
A(n) transistor can either amplify an electronic signal or switch a current on and off.
Explanation:
The main component of a transistor is a semiconductor. A transistor has at least three terminals. Voltage application through a pair of terminals affects the voltage of the other terminal. In addition, the controlling voltage can be lower than the controlled voltage, hence the amplification (gain) property of transistors. This same principle can be applied to switch on and off larger currents. If a controlling current surpasses a particular saturation point –specific to that transistor-, then it switches on the larger currents (controlled currents).
Transistors have much application in the world from being significant components in the electric circuits for speakers, hearing aids, calculators, computers, and most other digital gadgets.
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