i have some basic questions plz help.


1. under what factor bjt amplify a signal? or what is the cause of amplification of signal by the bjt amp?


2. during biasing an amp we bias base emitter junction farword and base collector junction reverse. my question is during operation "why current flow in base collector junction?" when it is reverse bias



plz hlp

 

Our Ebook may answer your questions - http://www.allaboutcircuits.com/vol_3/chpt_2/8.html

 

I moved this thread to the Homework section since it has all of the earmarks of a class assignment.

hgmjr

 

In simple terms you can say that the collector is more positive than the base and it attracts the electrons from the base, thus current flows.