A copper wire of length (ell=1.0 mathrm{~km}) and radius (r=) (1.2 mathrm{~mm}) carries current (I=20 mathrm{~A}). At

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A copper wire of length $\ell=1.0 \mathrm{~km}$ and radius $r=$ $1.2 \mathrm{~mm}$ carries current $I=20 \mathrm{~A}$. At what rate is energy lost from the wire? Why do long electrical transmission lines usually work with "high voltage"?

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Principles And Practice Of Physics

ISBN: 9780135610862

2nd Edition

Authors: Eric Mazur

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Question Posted: Apr 16, 2024 02:00 AM

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A copper wire of length (ell=1.0 mathrm{~km}) and radius (r=) (1.2 mathrm{~mm}) carries current (I=20 mathrm{~A}). At

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Principles And Practice Of Physics

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