- #1
Potatochip911
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Homework Statement
Two long wires (in cross section) that each carry a current ##i## directly out of the page. What is the magnitude of the field at point ##P##, which lies on the perpendicular bisector to the wires?
Homework Equations
##B_{wire}=\frac{\mu_0 i}{2\pi r}##
The Attempt at a Solution
I'm confused as to how the magnetic fields are adding up. The magnetic fields produced by a wire are given by the right hand rule, thumb in direction of current, then the way your fingers curl is the direction of the magnetic field. However, I just can't see whether or not they will cancel or add at this point.
Here is a picture I drew of the currents however this doesn't give the correct answer :
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