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3 marksOperational Amplifiers

CAPE Physics Unit 2 · 2015 · Paper 2 · Question 2(a)(i)

Operational amplifiers and their circuit configurations.

Draw the circuit diagram for an inverting amplifier using an operational amplifier. Label EACH resistor in your circuit with the conventional term used to describe it.

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Other parts of this question

  1. 2(a)(ii)State THREE properties of an ideal operational amplifier.[3 marks]
  2. 2(b)(i)On the grid provided in Figure 4, plot a graph of output voltage (V_o) vs input voltage (V_i).[4 marks]
  3. 2(b)(ii)Use your graph to calculate the gain of the amplifier.[2 marks]
  4. 2(b)(iii)Explain the shape of your graph.[3 marks]

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