A transistor consists of
A) a layer of p-type semiconductor.
B) a layer of n-type semiconductor.
C) a combination of 2 doped layers, p and n.
D) a combination of 3 doped layers, such as n-p-n.

Question

Quizplus · Accepted Answer

A transistor consists of three doped layers, such as n-p-n or p-n-p. These layers are arranged in such a way that the middle layer is very thin and lightly doped, acting as a base for the other two heavily doped layers. The base region is the control element of the transistor, allowing it to act as an amplifier or switch.

A Transistor Consists of