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00 -gauge copper wire has a diameter of 9.266 $\mathrm{mm}$ . Calculate the power loss in a kilometer of such wire when it carries $1.00 \times 10^{2} \mathrm{A}$ .

$P=2.55 \mathrm{kW}$

Physics 102 Electricity and Magnetism

Chapter 20

Electric Current, Resistance, and Ohm's Law

Current, Resistance, and Electromotive Force

Rutgers, The State University of New Jersey

University of Washington

Hope College

McMaster University

Lectures

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In physics, a current is a…

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Suppose power $\mathscr{P}…

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Copper can be drawn into t…

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A hollow copper wire with …

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One wire in a high-voltage…

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(II) Calculate the ratio o…

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Copper wire of diameter 0.…

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A copper transmixsion cabl…

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The current-density magnit…

Ah, now equal. Huh? One kilometer, which is 1000 meters. And we also know that the emitter is to 9.2 to 66 millimeters. So we can determine the resistance off this wire are equal role l over s right. So row l over SS has expression pie the over to squid. Right? So we want to determining the power loss on the wire. It would have current I pull 100 amperes so he simply go to I square times are okay, So if you're plugging the expression for are so that we ii squid times row time sell delight by high D over to split. Hey, you simply need to plug in the numbers and you can see that the final solution Just, uh 25 50 What's okay?

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