Question

Which of the following is true in construction of a transistor?

(a) the collector dissipates lesser power

(b) the emitter supplies minority carriers

(c) the collector is made physically larger than the emitter region

(d) the collector collects minority charge carriers

I had been asked this question in an interview for internship.

The origin of the question is The Junction Transistor in chapter Transistor Characteristics of Electronic Devices & Circuits

Answer 1

Correct choice is (c) the collector is made physically larger than the emitter region

Explanation: In most of the transistors, the collector is made larger than emitter region. This is due to the fact that collector has to dissipate much greater power. The collector and emitter cannot be interchanged.