In short, the NPN transistor conducts when the collector terminal is at a higher potential than both the base and the emitter. The voltage between the baes and emitter terminals is called V BE, and is more positive at the base than the emitter because for NPN transistor, base terminals should be higher in potential than the emitter.Īlso, there is representation of the voltage between the collector and emitter, it is denoted by V CE, and this voltage is positive with respect to emitter.
The schematic diagram of a NPN transistor is shown in the above figure. it converts and transfers the internal resistance from low resistance of emitter – base to the high resistance of collector – base circuit. The name transistor is derived from the “ Transfer of Resistance” i.e.
