Question

What is the value of β in a high frequency response of emitter follower amplifier if Vf = 12V and VO = 12V?

(a) 1

(b) 124

(c) 1.24

(d) 0.124

The question was posed to me during an interview for a job.

Origin of the question is High-Frequency Response of the Emitter Followers topic in chapter Frequency Response of Electronic Devices & Circuits

Answer 1

The correct option is (a) 1

To explain I would say: The value of β in a high frequency response of emitter follower amplifier configuration can be calculated using β = Vf / VO. Given, Vf = 12V and VO = 12V:

β = Vf / VO = 12 / 12 = 1.