Question

Why do we need collector emitter feedback bias?

(a) To provide a non – linear output

(b) To maintain transistor in active region

(c) To maintain transistor in saturation region

(d) To maintain transistor in cut – off region

I had been asked this question in an online quiz.

This intriguing question originated from Collector-Emitter Feedback Bias topic in portion Transistor Biasing and Thermal Stabilization of Electronic Devices & Circuits

Answer 1

The correct choice is (b) To maintain transistor in active region

For explanation I would say: We use a collector emitter feedback to collect negative feedback and to maintain the transistor in an active region. To maintain stability in active region, the DC base biased voltage is resultant from the collector voltage VC.