Q125 / 180 · NEET 2020 (Phase 1) · Physics

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

A
Base, emitter and collector regions should have same size.
B
Both emitter junction as well as the collector junction are forward biased.
Correct answer
C
The base region must be very thin and lightly doped.
D
Base, emitter and collector regions should have same doping concentrations.

Solution

For a transistor, its junction is lightly doped and the base region is very thin. Also, the emitter junction of a transistor must be forward-biased and collector junction should be reverse-biased.

Hence, the correct answer is option: 'C'.

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