Electronics and Communication Engineering - Analog Electronics - Discussion

Discussion Forum : Analog Electronics - Section 13 (Q.No. 14)
14.
A two stage amplifier has an upper cutoff frequency of 2 MHz and a lower cutoff frequency of 2 MHz and a lower cut off frequency of 30 Hz. If both stages are similar, their individual upper and lower cut off frequencies respectively are
4 MHz and 60 MHz
3 MHz and 20 Hz
3 MHz and 60 Hz
4 MHz and 20 Hz
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
1 comments Page 1 of 1.

Ajit said:   9 years ago
Fl' = Fl * square root(2^1/n - 1) n = no of stages, here it is 2.
Fl' = 30Hz * square root (2^1/2 -1) = 20Hz
Fh = 2Mhz/square root (2^1/2 -1) = 3Mhz
(1)

Post your comments here:

Your comments will be displayed after verification.