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

  • question_answer
    Which of the following cannot be used in electrical wires?

    A)  Copper                               

    B)  Silver   

    C)         Aluminium   

    D)         Iron                      

    Correct Answer: D

    Solution :

    All the given metals are good conductors of electricity. But, iron cannot be used in electrical wires because it is brittle and corrodes when it comes in contact with the oxygen in the air.


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