Mathematics · Electric Circuits
A silver wire and a copper wire are connected in parallel. Their respective specific resistances are in the ratio of 49:24. The first wire carries 80 percent more current than the second wire, and the length of the second wire is 47 percent longer than that of the first. Calculate the ratio of the cross-sectional areas of these two wires (Silver : Copper).
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 12.5 : 1✓
- 21 : 2.5
- 324 : 49
- 449 : 24
Correct answer
2.5 : 1
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