Physics 5054 · O Level · Series and parallel circuits

Series and parallel circuits — practice question

A battery is connected in series with a thermistor and a resistor whose resistance remains constant. A voltmeter is placed in parallel across the resistor. As the temperature decreases, what changes are correct?

  • Aresistance of thermistor decreases; voltmeter reading decreases
  • Bresistance of thermistor decreases; voltmeter reading increases
  • Cresistance of thermistor increases; voltmeter reading decreases
  • Dresistance of thermistor increases; voltmeter reading increases

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