yes they areAre the op amps ideal?
With ideal op amps, your equations will give you the answers. That is, if you know the values of Ri and Aol for an ideal op amp.Zin(I) = Ri
Zout(I) Almost equal to 0
:::::::::
Zin(NI = (1+Aol B ) Zin
Zout(NI) = Zout/(1+Aol B)
where B + Ri/(Ri+Rf)
You would have to look up Ri and Aol in the datasheet.suppose that the op amps in practical model
what will be the solution ?
What are you waiting for?I'm waiting
i am very confusingWhat are you waiting for?
Your equations are very simple.i am very confusing
if these amps are ideal , what will be the solution
Many op amps don't specify input resistance, but they all specify voltage gain.and, if they are in practical model
what the solution will be ?
OMG! He's confused enough already. You've just opened a whole new can of worms.You cannot calculate the gain of the inverting opamp unless you know the input impedance of the source which is in series with the input resistor.
Can you assume it is zero ohms?