Diode/ Transistor/ Thyristor

1. Diode: a diode is an electronic component that allows current to flow in only one direction. It consists of two terminals: an anode (positive) and a cathode (negative). Diodes are used for rectification in power supplies, signal demodulation in communication circuits, and protection against reverse voltage.

2. Transistor: it is a semiconductor device used for amplifying or switching electronic signals and power. It has three terminals: collector, base, and emitter. Transistors are fundamental to modern electronics, enabling the development of computers, radios, and countless other electronic devices.

3. Thyristor: A thyristor is a semiconductor device used for controlling large amounts of electrical power. It acts as a switch that can conduct current only after it is triggered by a small control signal. Thyristors are used in power control applications such as motor speed control, light dimming, and AC power regulation.