the resistance of 1m long nichrome wire is 6r if we reduce length of the wire 70 cm what will its resisitivity what is its unit
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R=ρAL
R is directly proportional to L
6ohm when length is 1m
When length7cm=×61×0.7
=4.2ohm.I DONE MUCH HARDWORK PLEADE LIKE ME!!!
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hetu is the answer me that
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