Question

At what frequencies does the gain of the n-stage cascading amplifier get compromised?

(a) Mid-range frequencies

(b) High-range frequencies

(c) Low-range frequencies

(d) It does not affect the gain

I had been asked this question in quiz.

My doubt is from N-Stage Cascading Amplifiers topic in section Low Frequency Transistor Amplifier Circuit of Electronic Devices & Circuits

Answer 1

The correct choice is (c) Low-range frequencies

For explanation: Multistage cascading amplifiers or n-stage cascading amplifiers have a low cut off frequency. The gain of the system is compromised at lower frequencies. To calculate the cut off frequency fc = f1 / √(2^1/n – 1), where f1 is initial frequency.