How much is a hundred coppers? 2=

The answer is as follows:

Its line resistance is 3.44 ohms. The line resistance R= copper wire resistivity 0.0 172* (length L/ cross-sectional area s) = 0.0172 * (100/0.5 = 3.44 ohms, so a 0.5-square-millimeter wire is pulled100 meters long by 2 degrees.

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