A solid non-magnetic conductor of circular cross section has its axis on z-axis and carries a uniformly distributed total current of 60 A in the az direction. If the radius of the conductor is 4 mm, find the magnetic flux density at ρ = 5 mm.
- A. 3.1 mT
- B. 2.1 mT
- C. 2.4 mT
- D. 4.0 mT