everyday science MCQ #1564

Which of the following devices is used to step up or step down the voltage of an alternating current?

everyday science MCQ #1564

  1. Question 1

    Q1. Which of the following devices is used to step up or step down the voltage of an alternating current?

    • A) Induction Coil
    • B) Transformer
    • C) Transistor
    • D) Rectifier

    Answer: Transformer

    Explanation: A transformer uses electromagnetic induction to increase (step up) or decrease (step down) the voltage of an alternating current, based on the ratio of turns in its primary and secondary coils.