For the circuit in Figure P9.43, the input voltage is υI = 5 V. (a) If υO = 2.5 V, determi...

For the circuit in Figure P9.43, the input voltage is υI = 5 V. (a) If υO = 2.5 V, determine the finite open-loop differential gain of the op-amp. (b) If the open-loop differential gain of the op-amp is 5000, determine υO