MDCAT Physics MCQ #482

Why does the resistance of a conductor increase with temperature?

MDCAT Physics MCQ #482

  1. Question 1

    Q1. Why does the resistance of a conductor increase with temperature?

    • A) Increased atomic vibrations scatter electrons
    • B) Electrons move faster at higher temperatures
    • C) Conductor expands, increasing length
    • D) Increased temperature reduces electron density

    Answer: Increased atomic vibrations scatter electrons

    Explanation: Atomic vibrations increase with temperature, scattering electrons and increasing resistance. Option B is incorrect as electron speed isn't the primary factor.