Question

The voltage gain of given circuit below is_________

(a) 100

(b) 20

(c) 10

(d) 30

I have been asked this question during an interview for a job.

I want to ask this question from Biasing Parameters topic in portion Small-Signal Low-Frequency AC models of Transistors of Electronic Devices & Circuits

Answer 1

Right option is (c) 10

Easy explanation: The gain for the given circuit can be found by, AV=RF/RS

=100K/10K=10.