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find d resistance of 1000m of a copper wire 25mmsquare in cross section.d resistance of...

find d resistance of 1000m of a copper wire 25mmsquare in cross section.d resistance of copper is 1/58per meter lenght nd 1mm square cross section.wt will be d resistance of another wire of d same material 2times as long nd one half area of cross section?
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