Quelpr
2 marksOperational Amplifiers

CAPE Physics Unit 2 · 2001 · Paper 2 · Question 7(c)(iii)

In the non-inverting amplifier circuit of Figure 4, R_f = 100 kΩ and R_i = 20 kΩ.

Determine the output voltage for a sinusoidal signal of peak input voltage 3 V.

This question uses a figure or table from the paper — you'll see it when you practise.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 7(a)Give THREE properties of an ideal operational amplifier.[3 marks]
  2. 7(b)For the non-inverting amplifier shown in Figure 4, show that the closed loop voltage gain, A, is given by A = 1 + R_f / R_i.[5 marks]
  3. 7(c)(i)Determine the closed loop gain.[1 mark]
  4. 7(c)(ii)When this circuit is used it saturates at ±13 V. If saturation is to be avoided, calculate the maximum input voltage that can be used.[2 marks]
  5. 7(c)(iv)Sketch the resulting output signal when the peak input voltage is 3 V.[2 marks]
  6. 7(d)Design an op-amp summing circuit to combine three signals V_1, V_2, and V_3 to produce V_0 = -V_1 - 4V_2 - 12V_3, such that the input resistance at the inputs…[5 marks]

More practice: the rest of this paper · more Operational Amplifiers questions · all CAPE Physics Unit 2 past papers