MDCAT Physics MCQ #909

A person is using a transformer to step down the voltage in a circuit. What phenomenon is responsible for the decrease in voltage?

MDCAT Physics MCQ #909

  1. Question 1

    Q1. A person is using a transformer to step down the voltage in a circuit. What phenomenon is responsible for the decrease in voltage?

    • A) Electromagnetic induction
    • B) Magnetic resonance
    • C) Electromagnetic radiation
    • D) Thermal expansion

    Answer: Electromagnetic induction

    Explanation: The transformer uses electromagnetic induction to step down the voltage. Magnetic resonance, electromagnetic radiation and thermal expansion are not the primary phenomena involved.