3.18 - Potential inside and outside a sphere with V = k cos(3theta)  on its surface
3.21 - Find the approximate potential of a charged disk off-axis
3.22 - Potential due to spherical shell with uniform opposite charges on north and south hemispheres
3.28 - Dipole moment of spherical shell with cosine(theta) charge distribution
3.29 - Quadrupole and octopole moments of simple dipole

Bonus questions

B7.1 - Find V(r) for a point charge near a conducting plane using the eigenfunction expansion technique
B7.2   3.25. Potential around a cylinder with specified charge density on the surface

Examples class week 8

3.19 - Dipole moment of spherical shell with cosine(3*theta) charge distribution
3.26 - Multipole exercise for sphere containing nonuniform charge density
3.27 - Approximate potential due to specific configuration of four point charges