Multiple Choice Questions on The principle of changing magnetic field which produces an electric current in a wire is used in ........ for RRB(NTPC) Exam Preparation

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Multiple Choice Questions

The principle of changing magnetic field which produces an electric current in a wire is used in ........

Static Gk (RRB NTPC) Physics
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    The principle of changing magnetic field which produces an electric current in a wire is used in _______.

    Electric bell

    Incorrect Answer

    Electric generator

    Correct Answer

    Electromagnets

    Incorrect Answer

    Magnetic compass

    Incorrect Answer
    Explanation:
    * The principle of changing magnetic field which produces electric current in a wire is used in Electric Generator.
    * When electricity passes through the wire, the metal becomes magnetic and creates a magnetic field.
    * The coils of wire of the generators are conductors, and when the electrons in the wires are exposed to changing magnetic fields, they move, creating an electric current in the wires.

    By: Barka Mirza
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