1. The problem statement, all variables and given/known data An infinitely long wire lies along the z axis and carries a current of 12 A in the positive z direction. A second infinitely long wire is parallel to the z axis at x = 8.2 cm. a.)Find the current in the second wire if the magnetic field at x = 1.6 cm is zero. b.)What is the magnetic field at x = 5 cm? 2. Relevant equations F=I(LxB) 3. The attempt at a solution I am lost with this one.