A long solenoid with 10.0 turns/cm and a radius of 7.00 cm carries a current of 20.0 mA. A current of 6.00A exists in a straight conductor located along the central axis of the solenoid.
a.) At what radial distance from the axis will the direction of the resulting magnetic field be at 45.0 degrees to the axial direction?
b.) What is the magnitude of the magnetic field there?