Question

Where should be the bias point set in order to make transistor work as an amplifier?

(a) Cut off

(b) Active

(c) Saturation

(d) Cut off and Saturation

I had been asked this question by my college director while I was bunking the class.

I'm obligated to ask this question of The Operating Point in section Transistor Biasing and Thermal Stabilization of Electronic Devices & Circuits

Answer 1

Correct answer is (b) Active

For explanation: To operate transistor as an amplifier, it requires more current amplification factor and in cut off and saturation, the current amplification is less, therefore active region is better to fix the Q point.