Question 5
(a) State four properties of an ideal operational amplifier.
(b) Fig. 3 is the circuit diagram of a non-inverting amplifier. 
Calculate the voltage gain.
The expected responses were:
(a) Properties of an ideal operational amplifier
- Infinite impedance
- Infinite open-loop gain
- Zero input offset voltage
- Zero output impedance
- Infinite bandwidth
It was reported that majority of the candidates responded well to question 5.