MDCAT Physics MCQ #551

A thermistor has negative temperature coefficient. What happens when it is heated?

MDCAT Physics MCQ #551

  1. Question 1

    Q1. A thermistor has negative temperature coefficient. What happens when it is heated?

    • A) Resistance increases
    • B) Resistance decreases
    • C) Resistivity becomes zero
    • D) Charge density increases

    Answer: Resistance decreases

    Explanation: Semiconductors have negative temperature coefficient. Option A applies to metals.