1. The problem statement, all variables and given/known data At what distance (in m) from a very thin, straight wire carrying a 38 A current would the magnetic field strength be the same as a refrigerator magnet of 4.35 x 10-3 T? 2. Relevant equations B=(μo/2pi)*(I/d) where μo=4pi*10^-7 3. The attempt at a solution 4.35e-3(d)=2.0e-7*(38) d=.0017m It says this is wrong? so I must have done something wrong.. any help would be appreciated! Thanks for your time!