Question

Explain, why electric power transmitted at high voltages and low currents to distant places?​

Answer 1

Answer:

Explanation:

Wire resistance causes losses transmission. lf you keep resistance constant, losses are linearly proportional to voltage but proportional to the square of the current. So, if you double the voltage, for the same power you have half the current and in electric power power dissipation is effectively halved for the same power.

Another important reason is weight. In order to transmit more current and keep losses under control, one would need a bigger wire, with a larger sectional area.

Such a wire would weight a lot more than the thinner wire that can transmit lower currents. Heavier cables limit the use more metal, are more expensive, and limit the cable span (the distance between the towers), quiring more towers to be transmitted over the same distance.

Answer 2

Electric power is transmitted at high voltages and low currents to distant places because, to reach distance places for the use. As high currents waste more energy than low currents, electrical power is transported around the grid at a high voltage and a low current.