Environmental Sciences, asked by Ridhima64141, 11 months ago

find resistance of copper wire 30m long and 1mm in diameter.(resistivity of copper =1.7x10^-6 ohmcm)

Answers

Answered by Anonymous

3

Answer:

>>>>> Engineers often ask how to calculate the resistance of a cable, there is a very simple formula that works well within an ohm or so with copper cable. 19 ÷ by 2.5mm² will give you 7.6 ohms per km. ÷ by 1000 for resistance per meter.

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