Q. A transmission line that has a resistance per unit length of 5.0 10-4 /m is to be used to transmit 5.00 MW over 400 miles (6.44 105 m). The output voltage of the generator is 4.50 kV (rms). (a) what is the line loss if the transformer is stepped up to 490 kV. (b) what input power is lost to the lines
Q. Two stationary positive point charges, charge 1 of magnitude 3.65 and charge 2 of magnitude 1.80 , are separated by a distance of 58.0 . An electron is released from rest at the point midway between the two charges, and it moves along the line connecting the two charges.