Along, straight wire carrying a current of 6.5 a in the positive x direction of the rectangular coordinate system xyz is placed directly below and parallel to the central axis of a solenoid that has 1000 windings per meter of length and a current of 45 ma. the wire is 50 mm away from the solenoid center. the positive z direction of the xyz rectangular coordinate system is directed from the wire to the solenoid center.
part a
determine the magnitude of the magnetic field at the center of the solenoid