# Phasors and AC-current

1. Dec 29, 2008

### Niles

Hi all.

If I have a current going from A to B with a phase of 0.78 (radians) at time t, and a current going from B to A with a phase of 0.78+Pi = 3.93 at the same time t, does this mean that the currents are going the same way?

Sincerely,
Niles.

2. Dec 29, 2008

### Pythagorean

all that's really crucial is that their phase difference is pi, so their graphs over time will look like this:

(note, if you wanted it to perfectly match your situation, you could move the x-y axes over a pinch, but it would be the same result.)

From the graphic it appears the two currents are always pointing opposite directions, however your problem states that one current is "from A to B" and the other is "from B to A" so one of them will be flipped and line up with the other one. So they do go the same direction over time.

Last edited: Dec 29, 2008
3. Dec 29, 2008

### Niles

Thanks for taking the time to plot the graphics and for answering.

Have a happy New Year.