engineering physics MCQ #965

The resistance of a conductor at 0°C is 10 ohms. If the temperature coefficient is 0.005 /°C, its resistance at 100°C will be

engineering physics MCQ #965

  1. Question 1

    Q1. The resistance of a conductor at 0°C is 10 ohms. If the temperature coefficient is 0.005 /°C, its resistance at 100°C will be

    • A) 15 ohms
    • B) 20 ohms
    • C) 10.5 ohms
    • D) 15.5 ohms

    Answer: 15 ohms

    Explanation: Using R = R0(1 + αt), we get R = 10(1 + 0.005*100) = 10(1 + 0.5) = 10*1.5 = 15 ohms.