24 (a) By applying the two golden rules of ideal operational amplifier circuits and the superposition principle, show th
Posted: Thu Jun 02, 2022 9:24 am
24 (a) By applying the two golden rules of ideal operational amplifier circuits and the superposition principle, show that the voltage gain of the amplifier circuit in Figure 4.1 is (V₂ – V₂) [7 marks] V₁ V₂ Figure 4.1 (b) Choose appropriate resistance values for the two resistors R₁ and R₂ for an expected voltage gain of 20. Relevant calculations and practical considerations should be given. [4 marks] (c) State the input and output resistances of the amplifier circuit in Figure 4.1 by assuming the op-amp in the circuit is ideal. Explain briefly how the input resistances of the circuit may be improved. [4 marks] R₁ R₂ Vo