Your apprentice electrician has been instructed to locate a long, straight, vertical, current carrying wire inside a wall. The wire carries a DC current of I = 11.3 A. The electrician knows that the materials used to construct the wall do not change the magnetic permeability. In his toolbox, the electrician has an orienteering compass and a very sensitive magnetic field sensor. In this problem, recall that 1 G = 10⁻⁴ T.
(a) How far from the wire (in cm) would the magnetic field due to the current be exactly 1 Gauss?