 #1
whatphysics
 29
 2
Hello there, this isn't necessarily a homework question. I came across this qn during revision and didn't know how to solve it. Any help would be greatyly appreciated.
The answer is 0.97
1. Homework Statement
For the ideal OPAmp in negative feedback configuration shown in Figure Q30, calculate the closedloop gain, AVCL=VO/VS= ________. Assume R1=10 KΩ, R2=5 KΩ, R3=2 KΩ, R4=2 KΩ, R5=5 KΩ, R6=1 KΩ, RL=10 KΩ.

Im unsure how to deal with the bottom bit, the resistors R3 to R6 which is connected to the inverting input. Do i try and find the Req for that bit and then treat it as Req is the feedback resistor? How would I proceed to attempt this question?
Thank you for all your help.
The answer is 0.97
1. Homework Statement
For the ideal OPAmp in negative feedback configuration shown in Figure Q30, calculate the closedloop gain, AVCL=VO/VS= ________. Assume R1=10 KΩ, R2=5 KΩ, R3=2 KΩ, R4=2 KΩ, R5=5 KΩ, R6=1 KΩ, RL=10 KΩ.
Homework Equations

The Attempt at a Solution
Im unsure how to deal with the bottom bit, the resistors R3 to R6 which is connected to the inverting input. Do i try and find the Req for that bit and then treat it as Req is the feedback resistor? How would I proceed to attempt this question?
Thank you for all your help.