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A lead wire and an iron wire are connected in parallel. Their respective specific resistances are in the ratio 49: 24. The former carries

A lead wire and an iron wire are connected in parallel. Their respective specific resistances are in the ratio 49: 24. The former carries 80 percent more current than the latter and the latter is 47 percent longer than the former. Determine the ratio of their cross sectional areas. Lead www ww Iron

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