1. The problem statement, all variables and given/known data Calculate the magnitude and direction of the magnetic field 25cm to the east of a straight vertical wire with a current of 12A downward through the air. 2. Relevant equations B = u(I / 2*pi*r) 3. The attempt at a solution Finding the magnitude is simple, but finding the direction is giving me difficulty. The magnitude is 9.6E-6 T, and the direction is South. How is the direction South?