Question

Why is CE short circuit gain obtained with hybrid pi model better for linear circuits?

(a) Independent of β

(b) Dependent on β

(c) Highly predictable

(d) Not stable

This question was addressed to me during an online exam.

I'd like to ask this question from The CE Short Circuit Gain Obtained with the Hybrid PI Model topic in section High Frequency Transistor of Electronic Devices & Circuits

Answer 1

The correct choice is (b) Dependent on β

The explanation is: CE short circuit gain obtained with hybrid pi model is better for linear circuits as compared to self – bias circuits as it is dependent on β. Voltage divider bias circuits are highly predictable whereas self – bias circuits are independent of β. Therefore, for a CE short circuit gain obtained with hybrid pi model linear circuits are preferred.