For transistor action, which of the following statements is correct? 1. Base, emitter, and collector regions should have the same size 2. Both emitter junction, as well as the collector junction, are forward biased 3. The base region must be very thin and lightly doped 4. Base, emitter, and collector regions should have the same doping concentrations

    

 Question:  100% NCERT covered from Particular Keyword.Explanations are 100% from NCERT | [Difficult level: Easy] From NCERT NEET 2020

For transistor action, which of the following statements is correct?

1. Base, emitter, and collector regions should have the same size

2. Both emitter junction, as well as the collector junction, are forward biased

3. The base region must be very thin and lightly doped

4. Base, emitter, and collector regions should have the same doping concentrations

Answer:

3. The base region must be very thin and lightly doped.

In transistor base is least doped, so that most of electrons

emitted (in case of npn) from emitter reach to collector &

less number of electrons are destroyed due to

recombination with holes in base.

Transistor 

Case Study

👆MCQs/PYQs/Concept From NCERT👆