In NPN transistor main current flows from emmitter to collector but the threory say that Ie=Ic+Ib. So what i am thinking is i may be in Ic=Ie+Ib.pplzz help me.

 

The emitter I = Ib+Ic.
Max.

 

In NPN transistor main current flows from emmitter to collector but the threory say that Ie=Ic+Ib. So what i am thinking is i may be in Ic=Ie+Ib.pplzz help me.

In NPN transistor main current flows from collector to emitter and, therefore, Ie - Ic + Ib is correct.

The CB junction is Reverse Biased, the arrow in the Emitter of a NPN (or PNP) transistor shows the direction of the main Current Flow.

Ramesh

 

As you said in npn main current flow from collector to emitter so emitter = collector plus base current.if it is pnp the main current flow from emitter to collector so do u say collector = emitter plus base current

 

This imagine explains everything.

And as you can see in pnp transistor the main current flow from emitter to collector. But emitter also provides the base current.