MDCAT Physics MCQ #66

In an inductor, the back EMF opposes the change in current. What physical principle causes this?

MDCAT Physics MCQ #66

  1. Question 1

    Q1. In an inductor, the back EMF opposes the change in current. What physical principle causes this?

    • A) Lenz’s law
    • B) Ohm’s law
    • C) Coulomb’s law
    • D) Pascal’s principle

    Answer: Lenz’s law

    Explanation: Lenz’s law states induced EMF opposes change in flux. B is incorrect because Ohm’s law relates current and voltage.