I have got the following doubt. Hope you clarify it. Thanks in advance
electron when finishes its life time recombines with hole in valence band . its given that in an pnp transistor holes of emitter recombine with electrons of base to give base current. How does recombination give current ?
I mean current is produced due to movement of electrons in CB (conduction band) or holes in VB(valence band). So how does this recombination produce current?