If a power utility were able to replace an existing 500 kV t

If a power utility were able to replace an existing 500 kV transmission line with one operating at 1 MV, it would change the rate at which heat is produced in the transmission line to one-half of the previous value. two times the previous value. four times the previous value. one-fourth of the previous value. none of these. The rate at which heat is produced would remain the same.

Solution

Answer is D) one fourth the previous value because the voltage is the only changing factor. Power(loss) = (P^2/V^2) * R so P doubles (x2) then it is 1/4 of the previous power dissipated