Electronics - Bipolar Junction Transistors (BJT) - Discussion

Here for proper operation is mentioned, that means BJT should work as an amplifier and it means BJT should be in (active region), for this junction between base & emitter i.e., emitter junction is FB and junction between base & collector i.e. collector junction (Jc) is RB. Saying base-emitter voltage FB means 'Vbe' is positive. i.e., it's NPN transistor, so in NPN transistor, the collector is positive and the base is negative to make it RB, so the answer is collector-base junction is to be reverse biased.

Why not base-collector?

Question asking about the name of the junction, so both C-B and B-C must be right.

Please help me because that Question Came in SSC JE 2015.

Hey why not collector emitter?

Here, the question refers to pnp bjt transistor, since it is given that the BE is forward biased, then the Base collector should be reversed biased for it to operate properly.

If the answer is D then the question where base-emitter should change to emitter-base.

Because base-collector is the same as collector-base.

If the transistor is in the C-E mode?

The answer is not correct in case of the common emitter. In this case, it should be ce.

Transistor base-emitter junction must be forward biased with the reverse bias applied which junction.

As the question does not specify the transistor configuration, answer should be Collector to emitter. Because common purpose of the transistor is for amplification.

The most common configuration that we are using now in amplifier application is common emitter and the main purpose of transistor is for amplifiers. So the answer must be collector to emitter right?