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2 marksDesign and Use of Thermometers

CAPE Physics Unit 1 · 2006 · Paper 2 · Question 3(a)(ii)

A thermistor is to be calibrated by plotting a graph of its resistance at various temperatures. Table 2 shows the collected data.

Describe briefly the experimental set-up and suggest ONE precaution which might be taken to ensure accurate values.

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Other parts of this question

  1. 3(a)(i)Draw a circuit diagram showing how the values of the p.d. across the thermistor and the current flowing through it might be measured.[1 mark]
  2. 3(b)(i)Complete Table 2 to show the values of the resistance, R.[2 marks]
  3. 3(b)(ii)On the page opposite plot a graph of resistance, R, versus temperature, θ.[4 marks]
  4. 3(c)Find the temperature indicated by this thermometer when the resistance is 320 Ω.[1 mark]

More practice: the rest of this paper · more Design and Use of Thermometers questions · all CAPE Physics Unit 1 past papers