The correct answer is: A. transmission line
A transmission line is a system of conductors for carrying electric power from one location to another. The power loss in a transmission line is due to the resistance of the conductors and the capacitance between the conductors. The resistance of the conductors causes the power to be dissipated as heat, while the capacitance between the conductors causes the power to be lost to the environment.
The power loss in a transmission line is an important factor for the design of the line. The power loss can be reduced by using conductors with a lower resistance, by increasing the distance between the conductors, or by using a higher voltage.
The other options are incorrect because they are not systems of conductors for carrying electric power from one location to another.
- B. motor – A motor is a machine that converts electrical energy into mechanical energy.
- C. generator – A generator is a machine that converts mechanical energy into electrical energy.
- D. feeder – A feeder is a conductor that carries electric power from a substation to a load.