MDCAT Physics MCQ #522

Why does a thermistor exhibit non-ohmic behavior?

MDCAT Physics MCQ #522

  1. Question 1

    Q1. Why does a thermistor exhibit non-ohmic behavior?

    • A) Temperature increases resistance
    • B) Resistance changes with voltage
    • C) Current depends on charge density
    • D) Thermistors lack free electrons

    Answer: Resistance changes with voltage

    Explanation: Thermistors’ resistance varies with current-induced heating. This breaks linear I-V relation.