That refers to a current in which the direction of flow changes continuously. In household current, this usually happens at 50 or 60 cycles per second (depending on the country), but the definition of alternating current can include just about any other frequency, as well.
The only thing that can be concluded about alternating current is that it alternated at 50 or 60 Hz throughout the grids around the world.
It's the natural output from a coil that rotates within a field. To produce d.c. requires the natural a.c. output to be rectified (usually by means of a split-ring commutator).
The teams alternated back and fourth into groups.
I believe that several of the group members alternated singing lead.
6 months
Orville wright and his brother Wilbur wright alternated with flying the plain.
AC current is a specific type of electric current in which the direction of the current's flow is reversed, or alternated, on a regular basis. Direct current is no different electrically from alternating current except for the fact that it flows in the same direction at all times. Alternating current was chosen early in the 20th century as the North American standard because it presented fewer risks and promised higher reliability than competing DC systems of the day. Many of DC's deficiencies were later corrected, but not until a substantial North American infrastructure had already been developed. DC is the European standard.
You have to do the challenges on the main menu, if you do all of them I'm pretty sure your going to get all of them
This is a form of double knitting where the two threads are alternated to tie the sheets together with both 'right' sides out.
It would depend on the triangles, but assuming they were equilateral or isosceles, a trapezoid if alternated in a line.
this happens by the part that looks like a guitar,it vibrates the sound while your playin the violin
The Missouri Compromise of 1820 allowed a slave state into the union when alternated with a free state. The compromise allowed Missouri to enter the US as a slave state and part of Massachusetts was divided to allow the entrance of Maine into the US as a free state.