GiaCh18TB-18. The length of a certain wire is kept the same while its radius is changed to 3 times the original. What is the new resistance of this wire as a percentage of the original?
Added by Crystal C.
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Step 1: Recall the formula for resistance of a wire, which is R = Ļ * (L/A), where R is resistance, Ļ is resistivity, L is length, and A is cross-sectional area. Show moreā¦
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