Question

Draw the symbol of npn transistor show the biasing of a pnp transistor and explain transistor action​

Answer 1

Answer:

NPN Transistors are three-terminal, three-layer devices that can function as either amplifiers or electronic switches

In the previous tutorial we saw that the standard Bipolar Transistor or BJT, comes in two basic forms. An NPN (Negative-Positive-Negative) type and a PNP (Positive-Negative-Positive) type.

The most commonly used transistor configuration is the NPN Transistor. We also learnt that the junctions of the bipolar transistor can be biased in one of three different ways – Common Base, Common Emitter and Common Collector.

In this tutorial about bipolar transistors we will look more closely at the “Common Emitter” configuration using the Bipolar NPN Transistor