Using a transistor ... control circuits. We’ve embedded his twenty-minute video after the break. In it he talks about the use of transistors, the difference between NPN and PNP transistors ...

In this lesson, students build two circuits ... junction transistor, a three-layer sandwich of different types of semiconductor. The diagram illustrates the basic design of an NPN junction transistor.

This transistor switching circuit uses an npn transistor, a voltage divider (consisting of a \(5 kΩ \) resistor and thermistor) and a \(5 V\) power supply. Use the information in the table to ...