Mark T, Thomas J
What- AC stands for alternating current, which means the electrical current frequently reverses direction. AC electricity is measured according to its cycles, with one complete cycle being counted each time a given current travels in one direction and then doubles back on itself.
Where- buffalo, New York
AC has at least three advantages over DC in a power distribution grid:
- Large electrical generators happen to generate AC naturally, so conversion to DC would involve an extra step.
- Transformers must have alternating current to operate, and we will see that the power distribution grid depends on transformers.
- It is easy to convert AC to DC but expensive to convert DC to AC, so if you were going to pick one or the other AC would be the better choice.
"Ac+power - Google Search." Ac+power - Google Search. N.p., n.d. Web. 14 Oct. 2015. <https://www.google.com/search?q=ac%2Bpower&safe=active&gws_rd=ssl#safe=active&q=what+is+ac+power>.