Question

Explain the working of p-n-p and n-p-n transistors

Answer 1

As started before in n-p-n bipolar transistor one p-type semiconductor resides between two n-type semiconductors the diagram below a n-p-n transistor is shownNow IE, IC is emitter current and collect current respectively and VEB and VCB are emitter base voltage and collector base voltage respectively. According to convention if for the emitter, base and collector current IE, IB and IC current goes into the transistor the sign of the current is taken as positive and if current goes out from the transistor then the sign is taken as negative. We can tabulate the different currents and voltages inside the n-p-n transistor.