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A lead wire and an iron wire are connected in parallel. Their respective resistances are in the ratio 49:24. The former carries 80 per cent more current than the latter and the latter is 47 per cent longer than the former. Determine the ratio of their cross-sectional area. [2.5:1]

A lead wire and an iron wire are connected in parallel. Their respective resistances are in the ratio 49:24. The former carries 80 per cent more current than the latter and the latter is 47 per cent longer than the former. Determine the ratio of their cross-sectional area. [2.5:1]

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
10th Edition
ISBN:9781337399128
Author:Russell E. Smith
Publisher:Russell E. Smith
Chapter16: Installation Of Heating, Cooling, And Refrigeration Systems
Section: Chapter Questions
Problem 19RQ
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A lead wire and an iron wire are connected in parallel. Their respective resistances are in the ratio 49:24. The former carries 80 per cent more current than the latter and the latter is 47 per cent longer than the former. Determine the ratio of their cross-sectional area. [2.5:1]
Transcribed Image Text:A lead wire and an iron wire are connected in parallel. Their respective resistances are in the ratio 49:24. The former carries 80 per cent more current than the latter and the latter is 47 per cent longer than the former. Determine the ratio of their cross-sectional area. [2.5:1]
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