Junction Transistors

Learn about junction transistors, including their types (NPN & PNP), working principles, construction, and applications in amplification and switching. Understand how Bipolar Junction Transistors (BJTs)

Difference between NPN and PNP Transistor

Discover the key differences between NPN and PNP transistor, including their structure, working principles, charge carriers, current flow, and applications. Learn how to choose the

Difference between LED and Photodiode

Discover the key difference between LED and Photodiode: LEDs convert electrical energy into light, while photodiodes convert light into electrical energy. Learn their working principles,