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

  • question_answer
    A Why is electrical wiring usually covered with a layer of plastic?

    A)  To make it strong

    B)  To allow electricity to flow in it

    C)  To make it safe

    D)  To make it beautiful

    Correct Answer: C

    Solution :

    Plastic is a good insulator of electricity and so makes it safe to touch the wire with a plastic covering.


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