MDCAT Physics MCQ #612

A copper wire has a resistance of 5Ω at 20°C. What is its resistance at 100°C?

MDCAT Physics MCQ #612

  1. Question 1

    Q1. A copper wire has a resistance of 5Ω at 20°C. What is its resistance at 100°C?

    • A) 2.5Ω
    • B) 5Ω
    • C) 7.5Ω
    • D) 10Ω

    Answer: 7.5Ω

    Explanation: Resistance increases with increasing temperature, so at 100°C it is higher.