MDCAT Physics MCQ #120

While using a hair dryer, you notice that the current drawn from the mains is more than expected. What can be the possible reason?

MDCAT Physics MCQ #120

  1. Question 1

    Q1. While using a hair dryer, you notice that the current drawn from the mains is more than expected. What can be the possible reason?

    • A) The hair dryer has a low power factor due to the presence of a capacitor
    • B) The hair dryer has a high power factor due to the presence of an inductor
    • C) The hair dryer is using a single-phase AC supply with a high inductive reactance
    • D) The hair dryer is using a single-phase AC supply with a low impedance to ground

    Answer: The hair dryer is using a single-phase AC supply with a high inductive reactance

    Explanation: The hair dryer is using a single-phase AC supply, and the high inductive reactance is causing it to draw more current than expected.