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resistance of a metal wire of length 1m is 26ohm at 20degree C. if the diameter of the wire is 4m. what will be the resistivity of the metal at that temperature |
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Answer» resistivity=rho R=Resistivity*length/area area =PI*[4/2]^2 GIVEN diameter=4m R=26 ohm 26=RESISTIVITY*1/pi*4 RESISTIVITY=26*pi*4=326.56 |
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