Question

What is the advantage of using CB amplifier configuration in a cascading transistor configuration?

(a) High efficiency

(b) Low distortion

(c) Good high frequency operation

(d) Good low frequency operation

I had been asked this question in class test.

I'd like to ask this question from The Cascode Transistor Configuration in division Low Frequency Transistor Amplifier Circuit of Electronic Devices & Circuits

Answer 1

Correct answer is (c) Good high frequency operation

The explanation is: The cascading transistor configuration circuit can be constructed with two configurations of a transistor that is CE (common-emitter) and CB (common base). The CB (common base) configuration delivers a good high-frequency operation.