Home Work Set # 10, Physics 217, Due: December 5,
Find the force of attraction between two magnetic dipoles,
oriented as shown in Figure 1, a distance d
(6.2) of Griffiths.
(b) equation (6.3) of Griffiths.
1. Problem 1.
A uniform current density
fills a slab straddling the yz
plane, from x
. A magnetic dipole
is situated at the origin.
a) Find the force on the dipole using equation
(6.3) of Griffiths.
b) Do the same for a dipole pointing in the
A long circular cylinder of radius R
carries a magnetization
is a constant, r
is the distance from the axis, and
is the azimuthal unit vector. Find the magnetic field due to
for points inside and outside the cylinder.
A short circular cylinder of radius R
and length L
"frozen-in" uniform magnetization
parallel to its axis. Find the bound current, and sketch the magnetic field of
the cylinder. (Make two sketches: one for L
, and one
Of the following materials, which would you expect to be paramagnetic and
which diamagnetic? Aluminum, copper, copper chloride (CuCl2),
carbon, lead, nitrogen (N2), salt (NaCl), sodium,