The resistivity of two conductors ‘A’ and ‘B’ are 1.62 x 10−8 Ω m and
5.20 x 10−8 Ω m respectively. Which of them is used in :
(i) Transportation of electricity
(ii) The making of heating coils? Why?
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(i) A is used for the transportation of electricity ,because the resistivity of the material is less.
(ii)B is used for making of heating coils ,because the resistivity of the material is medium.
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