A long solenoid with 9.28 turns/cm and a radius of 7.85 cm carries a current of 15.8 mA. A current of 5.08 A exists in a straight conductor located along the central axis of the solenoid.
(a) At what radial distance from the axis in centimeters will the direction of the resulting magnetic field be at 62.9° to the axial direction?
(b) What is the magnitude of the magnetic field there?