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8th Class Science Chemical Effects of Electric Current Question Bank Chemical Effects of Electric Current

  • question_answer
    What is the principle involved in the glowing of an electric bulb?

    A)  Magnetic effect of current

    B)                         Heating effect of current

    C)                         Chemical effect

    D)                         Conduction of current

    Correct Answer: B

    Solution :

    Due to the heating effect of current, the filament of the bulb gets heated to a high temperature and it starts glowing.


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