I read somewhere that the coupling and bypass capacitors play an important role in the transistor acting as a high pass capacitor…how ?

 

Transistors do not act as "a high pass capacitor". Perhaps you could rephrase your question?

Here is a link into our Ebook about frequency effects on capacitors that might help - http://www.allaboutcircuits.com/vol_2/chpt_4/2.html.

 

sorry its high pass filter

 

sorry the question is
I read somewhere that the coupling and bypass capacitors play an important role in the transistor acting as a high pass filter…how ?