GEOLOGY

Detailed explanation-1: -AC is easy to be transferred over longer distances – even between two cities – without much energy loss. DC cannot be transferred over a very long distance. It loses electric power.

Detailed explanation-2: -Alternating current is cheaper to generate and has fewer energy losses than direct current when transmitting electricity over long distances.

Detailed explanation-3: -AC is much easier (therefore cheaper) to step up and down in voltage(using a transformer) than DC, and can be done more efficiently than the much more expensive and complex DC step-up/step-down systems. That is why AC is used for power transmission.

Detailed explanation-4: -The main factor that went into the choice of AC over DC was that AC is more efficient. Its ability to travel back and forth made gave it the ability to travel over longer distances. Thus making it able to power more homes.

Detailed explanation-5: -Why is alternating Current superior to Direct Current for long distance transmission? AC is still preferred for general distribution because it is much easier to transform the voltage up or down. High voltage is preferred for long distance transmission because there is less current at high voltage for the same power.