72 Use the results displayed in Problem 71 to predict the (a) magnitude and (b) inclination of Earth's magnetic field at the geomagnetic equator, the (c) magnitude and (d) inclination at geomagnetic latitude 60.0", and the (e) magnitude and (f) in clination at the north geomagnetic pole.71 The magnetic field of Earth can be approximated as th magnetic field of a dipole. The horizontal and vertical com ponents of this field at any distance r from Earth's center ar given by How COS Am. B, sin A 2 FF