Electronic Devices - Operational Amplifiers - Discussion

Discussion Forum : Operational Amplifiers - General Questions (Q.No. 20)
20.

Refer to the given figure. Find the midrange gain of this amplifier.

26.7
–26.7
27.7
–27.7
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
2 comments Page 1 of 1.

Ravi raturi said:   1 decade ago
We use this formula for closed loop gain

v0/vin= -Rf/R1.where R1=3kohm & Rf=80kohm.....

Shivendra mishra said:   7 years ago
Firstly, we apply the virtual ground concept so according to this inverting voltage is equal to non-inverting and apply the KCL.

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