(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A high-voltage transmission line with a resistance of 0.28 /km carries a current of 990 A. The line is at a potential of 740 kV at the power station and carries the current to a city located 162 km from the station.

(a) What is the power loss due to resistance in the line?

W

(b) What fraction of the transmitted power does this loss represent?

%

2. Relevant equations

Power= change in V^2/R

where v is potential difference and R is resistance

Power = I^2*R

where I is current

3. The attempt at a solution

I got part a correct. I used the equation p=I^2*R and got 44457336

I cant figure out how to get the second part though

I tried using p=v^2/R with 740,000 as the V and .28(162) as the R to no avail

any suggestions?

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# Homework Help: Transmitted power

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