everyday science MCQ #4849

In an electric generator, an induced EMF is generated due to:

everyday science MCQ #4849

  1. Question 1

    Q1. In an electric generator, an induced EMF is generated due to:

    • A) A constant coil area
    • B) A constant magnetic field
    • C) A constant frequency of rotation
    • D) A change in magnetic flux

    Answer: A change in magnetic flux

    Explanation: By Faraday's law of electromagnetic induction, an EMF is induced in a coil whenever the magnetic flux through it changes, which is the operating principle of generators.