Question 7 (25 Marks) (A) State The Golden Rules For Op-Amp Circuits Operating In Feedback And Not Saturated (4 Marks) (B) Use The Op-Amp Golden Rules To Derive An Expression For The Closed-Loop Voltage Gain Or The Output Voltage For The Op-Amp Circuit Shown In Fig. Q7(B). (10 Marks) R2 Vio + 1 Fig. Q7(B) (C) If R1 = 1 K 2 And R2 = 5 K 2 In The Op-Amp

Question 7 (25 marks) (a) State the Golden Rules for op-amp circuits operating in feedback and not saturated. (4 marks) (b) Use the op-amp Golden Rules to derive an expression for the closed-loop voltage gain or the output voltage for the op-amp circuit shown in Fig. Q7(b). (10 marks) V o R2 R1 R1 R2 Vo + Fig. Q7(b) (c) If R1 = 1 k and R2 = 5 k in the op-amp circuit in Fig. Q7(b) and using 15 V supplies, sketch the output voltage Vo (including a voltage scale) when the input is the sinusoidal voltage: 0.2 V t -0.2 V (3 marks)