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How do semiconductor devices like transistors and diodes function, and what roles do they play in electronic circuits?

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Semiconductor devices like transistors and diodes function by manipulating the flow of electrical current through a semiconductor material.

Transistors act as electronic switches or amplifiers by controlling the flow of current between two terminals based on the voltage applied to a third terminal. They play crucial roles in electronic circuits by amplifying signals, switching electronic signals on and off, and serving as building blocks for digital logic circuits.

Diodes, on the other hand, allow current to flow in only one direction while blocking it in the opposite direction. They are commonly used to convert AC voltage to DC voltage, protect circuits from voltage spikes, and serve as rectifiers in power supplies.

Overall, semiconductor devices like transistors and diodes are fundamental components in electronic circuits, enabling the manipulation and control of electrical signals for various applications.