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6th Class Science Electricity and Circuits Question Bank Electrcity and Circuits

  • question_answer
    Electric heaters used for cooking have a filament or a heating co placed on a plate made up of clay. Why is this so?
    (i) It is a bad conductor of heat.
    (ii) It is a bad conductor of electricity.
    (iii) It is porous.

    A)  Only (i) and (ii)

    B)  Only (ii) and (iii)

    C)  Only (i) and (iii)

    D)  (i), (ii) and (iii)   

    Correct Answer: A

    Solution :

    Clay is a bad conductor of heat and electricity. In order to avoid shock due to the flow of current and also to avoid the instrument getting heated, a clay stand is used to place the coil or filament.


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