In the generalized operational amplifier circuit shown in figure, Z 1 , Z 2 and Z 3 are impedances The operational amplifier has an input impedance greater than 10 M and a gain equal to up to 100 Hz but inversely proportional to frequency at higher frequencies (a) It Z 1 1 k and Z 2 100 k , draw a graph to show how the voltage ratio V 2 V 1 varies with frequency (b) If Z 1 1 k and Z 2 consists of a parallel combination of a resistor R 2 10 k and a capacitor C I F, draw a graph to show how V 2 V 1 varies with frequency Z, V2

Question: In the generalized operational amplifier circuit shown in figure, Z 1 , Z 2 and Z 3 are impedances. The operational amplifier has an input

In the generalized operational amplifier circuit shown in figure, Z₁, Z₂ and Z₃ are impedances. The operational amplifier has an input impedance greater than 10 M? and a gain equal to up to 100 Hz but inversely proportional to frequency at higher frequencies.

(a) It Z₁ = 1 k? and Z₂ = 100 k?, draw a graph to show how the voltage ratio V₂/V₁ varies with frequency.

(b) If Z₁ = 1 k? and Z₂ consists of a parallel combination of a resistor R₂ = 10 k? and a capacitor C = I ?F, draw a graph to show how V₂/V_1?varies with frequency.

Z, V2

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