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posted by  GuitarTab on 10/9/2008 9:10:33 PM  |  status: Live  

voltage Vo

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Question Details:
 The parameters of the circuit shown are: R1 = 4.8 kOhms, R2 = 17 kOhms, R3 = 21 kOhms, R4 = 3.2 kOhms, R5 = 27 kOhms, R6 = 4.6 kOhms and V1 = 1.16 V. Assume that the opamps are ideal. a) Find the output voltage Vo.
 
correct answer :   -2.41

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posted by shann(EE-SME) on 10/10/2008 4:27:27 AM  |  status: Live
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GuitarTab's comment:
"thanks!"
Response Details:
Form the given circuit diagram we can say that the voltage at the inverting terminal is zero due to virtual short circuit.
Now by applying KCL at the inverting terminal we can get
Here is the output voltage of first op-amp.
From the second op-amp circuit we can also write
Now above equation (1) becomes
 
 
I hope this helps you...........
 
 
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