Physics 0625 · IGCSE · Electric circuits

Electric circuits — practice question

A circuit diagram contains a thermistor in a potential divider. Two voltmeters, X and Y, are connected in the circuit. As the temperature of the thermistor rises, its resistance falls. As the thermistor gets hotter, what change occurs in the reading on each voltmeter?

  • Areading on voltmeter X decreases, reading on voltmeter Y decreases
  • Breading on voltmeter X decreases, reading on voltmeter Y increases
  • Creading on voltmeter X increases, reading on voltmeter Y decreases
  • Dreading on voltmeter X increases, reading on voltmeter Y increases

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