a metallic wire of 625 mm long offers 4 ohm resistance. If the restivity of a metal is 4.8 x10-7ohm m, then calcuate the area of cross section of the wire.
Asked by naween jha | 12th Sep, 2014, 07:45: PM
Answered by Priyanka Kumbhar | 13th Sep, 2014, 08:58: PM
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