- #1

phy112

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## Homework Statement

If 46 m of nichrome wire is to have a resistance of 12.0 Ω at 20°C, what diameter wire should be used?

## Homework Equations

R=[tex]\rho[/tex](L/A)

## The Attempt at a Solution

I tried and I got 2.1. The [tex]\rho[/tex] of nichrome is 108e-8