- #1
exitwound
- 292
- 1
Homework Statement
Homework Equations
[tex]B = \frac{\mu_o i}{2\pi d}[/tex]
The Attempt at a Solution
To do this, you'd find the magnetic field magnitude due to the left wire, and add it to the magnetic field due to the right wire. Correct?
If so:
Wire 1:
[tex]B = \frac{1.26x10^-6 (8)}{2\pi(.02)} = -4x10^-6 \hat k[/tex]
Wire 2:
[tex]B = \frac{1.26x10^-6 (12)}{2\pi(.02)} = 1.2x10^-5 \hat k[/tex]
But this isn't right. The answer is B.
What's gone wrong?