Electronic Devices - Operational Amplifiers - Discussion

Discussion Forum : Operational Amplifiers - General Questions (Q.No. 9)
9.
An op-amp has an open-loop gain of 75,000 and a cutoff frequency of 100 Hz. At 1 kHz the open-loop gain is down by
10 dB.
6 dB.
20 dB.
3 dB.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
11 comments Page 2 of 2.

Ankit said:   1 decade ago
20log(75000) - 20log(750000) may be according to me because for 1 khz the open loop gain will be 75000*10 = 750000.


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