A small bar magnet has a magnetic moment I?B that makes an angle ??with the x?axis and lies in a nonuniform magnetic field given by B = B_x (x)i + B_y(y)j. Use F_x = ? dU/dx?and F_y = ? dU/dy to show that there is a net force on the magnet that is given by

Transcribed Image Text:

OBy аВзi+ My ду дх