MDCAT Physics MCQ #803

A transformer has 200 W input power and 190 W output. What is the efficiency?

MDCAT Physics MCQ #803

  1. Question 1

    Q1. A transformer has 200 W input power and 190 W output. What is the efficiency?

    • A) 95%
    • B) 90%
    • C) 98%
    • D) 85%

    Answer: 95%

    Explanation: Efficiency = (Output/Input) × 100. Option B subtracts instead of divides.