A magnetic dipole is placed between the poles of a magnet as shown. The direction of the associated force exerted on the dipole is:

Question

Quizplus · Accepted Answer

The force on a magnetic dipole is given by the equation F = m x B, where F is the force vector, m is the magnetic dipole moment vector, and B is the magnetic field vector. In this case, the magnetic dipole moment vector points from north to south, and the magnetic field vector points from the north pole of the magnet towards the south pole. 
Using the right-hand rule, we can determine that the force vector is perpendicular to both the magnetic dipole moment vector and the magnetic field vector, and points in the negative x direction. Therefore, the answer is choice C, negative x.

A Magnetic Dipole Is Placed Between the Poles of a Magnet