Determine the resistance and length of a copper wire weighing 89 with a section of 0.1m ^ 2.
| December 26, 2020 | education
To solve this problem, you need to know two formulas: the mass formula and the resistance formula
m = pV R = pl / S
V = Sl
l = m / pS = 89/8960 * 0.1 = 0.1
R = 0.017
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