7th Class Science Electric Current and Its Effects Question Bank Electric Current and Its Effects

  • question_answer
    Which of the following effects of current in an electric bulb gives us light?

    A)  Heating                       

    B)       Magnetic                      

    C)       Chemical                     

    D)       All of the above

    Correct Answer: A

    Solution :

    The filament of an electric bulb gets heated to such a high temperature that it starts glowing. This glowing filament produces light.


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