Science, asked by srinivasreddy65721, 25 days ago

A copper wire has a diameter 0.5 mm and resistivity 1.6 10-8ohm m.
(i) What will be the length of this wire to make the resistance of 12 Ohm
(ii) How much will be the resistance of another copper wire of same length but half the diameter?

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Answered by Khushi20993

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