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A high-voltage transmission line with a resistance of 0.33 omegacap.gif/km carries a current of 1040 A. The line is at a potential of 670 kV at the power station and carries the current to a city located 159 km from the station.
(a) What is the power loss due to resistance in the line?
(b) What fraction of the transmitted power does this loss represent?
Suppose a formula for gain in heat energy of an object is H = m(A - B), where m = mass and (A - B) is its rise in temperature between A degrees and B degrees (as in #4). Write an expression for the absolute uncertainty, delta-H, in terms of m, del..
A picture shows a charge A 1.00 m above the origin and has a charge of 5.00 X10^-9, Find the magnitude and direction of the electrostatic force on charge B.
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