Question

    Moving electric charge produces -

    A magnetic field Correct Answer Incorrect Answer
    B sound waves Correct Answer Incorrect Answer
    C light rays Correct Answer Incorrect Answer
    D light rays Correct Answer Incorrect Answer

    Solution

    An electric charge always produces an electric field, regardless of speed, and a moving charge generates a magnetic field. An electric current passing through a conductor produces a magnetic field because it has many charges in motion.

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