MDCAT Physics MCQ #488

What is the effect of increasing the cross-sectional area of a wire on its resistance?

MDCAT Physics MCQ #488

  1. Question 1

    Q1. What is the effect of increasing the cross-sectional area of a wire on its resistance?

    • A) Resistance increases
    • B) Resistance decreases
    • C) Resistance remains the same
    • D) Resistance becomes infinite

    Answer: Resistance decreases

    Explanation: Resistance is inversely proportional to cross-sectional area, so increasing area decreases resistance. Option A is incorrect as it's the opposite effect.