- #1
PolarBee
- 14
- 1
Homework Statement
How do I find the direction of the magnetic field at the points?
Homework Equations
Ampere's B = (UI) / (2*pi*r)[/B]
The Attempt at a Solution
I know how the Right hand rule, where your thumb is the direction of the current and your hand wraps the direction of the field, but I'm not sure how it plays in when both the current are opposite.