Question
Physics Question on Semiconductor electronics: materials, devices and simple circuits
When npn transistor is used as an amplifier, then
A
electrons move from collector to base
B
holes move from base to emitter
C
electrons move from base to collector
D
electrons move from emitter to base.
Answer
electrons move from base to collector
Explanation
Solution
In n-p-n transistor, the electrons are majority carriers in emitter, which move from base to collector while using n-p-n transistor as an amplifier.