How is the npn transistor of a common emitter works??

Question

aravindg · Answer

well its so much theory to xplain can u be specific ?

shayaan_mustafa · Answer

Yes AravindG is right. I agree with him. But it is not so difficult.

If you know how NPN works, if you know how voltage divider works, if you know how KVL is applied across NPN and finally if you know how collector current changes with base current.

These four are basic to know about the operation of Common Emitter (CE), not only this, it is applicable for Common Base (CB) as well as Emitter Follower (CC).

Best Wishes,
Electronic engineer,
Shayaan Mustafa

anonymous · Answer

|dw:1340111420346:dw| this one represent a switch on....and when the battery VBB is switched the other direction it acts as a switch off.....why??????