When the gain is more than the supply voltage 10>9 V, the op-amp will go into saturation. So, normally you get back the supply voltage.View attachment 55423
The problem is for c(ii)
i use Vout/V in=1 +Rf/R1
Replacing the values Vin=+0.4 , Rf =120 R1=5
i get answer :10 V
But the answer from marking scheme is 9 V . Can someone tell me the Reason ? is it linked to the diagram in part B ?