Since the base is very thin, so recombination in the base region is very less maximum 5%.

The base is much thinner than the emitter while the collector is wider than both because the emitter emits charge carriers and the collector has to receive a maximum of them.

The cross-sectional area of the collector is less than the base but greater than the emitter.The cross-sectional area of the base is very large as compared to the emitter.This is very lightly doped and very thinĬollector: This is moderately doped. device.Ī transistor (P-N-P or N-P-N) has the following sections:Įmitter: It emits the charge carriers and it is heavily doped.īase: The middle section of the transistor is known as the base. The transistor is three-terminal and two P-N Jn.It was discovered by American scientist J Barden, W.H. Transistor is used in place of triode valve, it is an electronic device formed by P and N types of semiconductors.

If you want to know about what is transistor and its types then read this article till the end. For Class 10 th Boards + JEE/NEET Studentįor Class 9 th + 10 th + JEE/NEET StudentĪ Transistor is an electronic device formed by P and N types of semiconductors.

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