Question

How does the negative feedback help a collector emitter feedback circuit?

(a) Helps make it more predictable

(b) Provides opposing change in base voltage

(c) Helps make it more predictable, provides opposing change in base voltage

(d) It doesn’t affect

I have been asked this question in quiz.

Question is from Collector-Emitter Feedback Bias in section Transistor Biasing and Thermal Stabilization of Electronic Devices & Circuits

Answer 1

Right choice is (c) Helps make it more predictable, provides opposing change in base voltage

Explanation: The negative feedback in a collector emitter feedback circuit provides a negative feedback which in turn helps make the circuit more predictable as it provides opposing change in the base voltage which cancels out any change in the collector current.