Quelpr
3 marksOperational Amplifiers

CAPE Physics Unit 2 · 2012 · Paper 2 · Question 2(a)(i)

An operational amplifier circuit is set up to plot its transfer characteristic.

Add a resistor to the op-amp circuit in Figure 3 so it becomes a non-inverting amplifier with a theoretical gain of +10, and label it with the required resistance value.

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

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Other parts of this question

  1. 2(a)(ii)Show on Figure 3 how meters and a potential divider would be connected to enable data collection of Vin and Vout.[3 marks]
  2. 2(b)(i)On the grid provided on page 7, plot the characteristic curve of Vout vs Vin for the non-inverting amplifier using data from Table 1.[6 marks]
  3. 2(b)(ii)From the plotted graph, determine the gain of the amplifier to 3 significant figures.[3 marks]

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