Question

please answer this questions. resistance of metal wire of length 1m is 26 ohm at 20 degree Celsius. if the diameter of the wire is 0.3mm, what will be the resistivity of the metal at that temperature .

Answer 1

Hey
HERE IS YOUR ANSWER
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Resistance=resistivity*length/area
26ohm=resistivity*1/0.3*10^-3
26*10^-3/0.3=resistivity
86.66*10^-3 mho=resistivity
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