- #1
moenste
- 711
- 12
Homework Statement
Two parallel wires have currents passed through them which are in the same direction. Draw a diagram showing the directions of the currents and of the forces on the wires.
Alternating currents are now passed through the wires. Explain what forces would act if the currents were: (a) in phase, and (b) out of phase, by π rad.
2. The attempt at a solution
For the drawing part:
We have two wires that have upwards directed current. The X circles represent the entering of the field into the paper and O circles represent the field coming out of the paper. We also have smaller circles that represent the field of the other wire that is affecting the neighbouring wire.
The forces are acting to the center of the distance between the wires.
In terms of (a) and (b) I don't understand what should be done. AC means that the current switches back and forth. What does it mean "current in phase" and "current out of phase by π rad"? What forces would be acting? Don't think that the question is about the gravity forces or something like that...