i am asking the question how am i supposed to know
by rectification
The major feature is that it cycles so that the voltage and the current are first positive and then negative. They cycle up to a peak, return to zero and repeat in the other direction. The number of cycles per second equals the frequency, 50 Hz or 60 Hz. The advantage is that the voltage can be changed easily using transformers. <<>> The prime feature of alternation current is that it can be transformed into higher voltages than it was generated at and transmitted over very long distances before it has to be transformer boosted again to travel further long distances. These boost stations are called sub stations and can be placed many hundreds of miles apart.
Electrons will travel farther distances at a lower voltage.
No changing the map scale does not change actual distances. if you say that: 1inch = 1 mile or you say 2inches = 2 miles The scale changed but the distance between one city and the next city is still the same.
Home electricity is Alternating Current (AC). AC can be transmitted much longer distances, over much less massive conductors than direct current (DC).CommentActually, d.c. can be transmitted much longer distances, with less massive conductors and lower losses, than a.c! However, the reason that a.c. is more common for transmission and distribution is the ease and efficiency with which its voltage levels can be changed using transformers. D.C. transmission at high voltage over very long distances is used because it is much more efficient than a.c. transmission, but changing its voltage levels is far more difficult and inefficient compared with a.c.
by rectification
The major feature is that it cycles so that the voltage and the current are first positive and then negative. They cycle up to a peak, return to zero and repeat in the other direction. The number of cycles per second equals the frequency, 50 Hz or 60 Hz. The advantage is that the voltage can be changed easily using transformers. <<>> The prime feature of alternation current is that it can be transformed into higher voltages than it was generated at and transmitted over very long distances before it has to be transformer boosted again to travel further long distances. These boost stations are called sub stations and can be placed many hundreds of miles apart.
1980
tunning
Speed and velocity have both changed.
No but some of the Stations have changed
i think it is ac. bcs the direction is changed with time. so it is ac
Voltage must be changed by a transformer, and the alternating current changed to direct current by diodes. Each step has a loss of energy.
The People Got To Communicate From Farther Distances
The female abolitionist and traveling preacher of the early 1800s was named Isabella Baumfree. She changed her name in 1843 to Sojourner Truth.
Electrons will travel farther distances at a lower voltage.
Alternating current became standard power in the 20th Century. This accomplishment changed the world. He designed the first hydroelectric powerplant in Niagara Falls in 1895, which was the final victory of alternating current.