A spherical cavities, of radii ra(ra)andrb(rb), are hollowed out from the interior ofaconducting sphere of radius R.At the center of each cavity apointcharge qa(qa) and qb (qb) are placed.Intermsof the given parameters;
a-) Find the surface charge density on each surface.
b-) Determine the electric field in each cavity.
c-) Find the electric field inside and outside oftheconductor.
d-) What is the force on qa andqb.
e-) Which of these answers would change if the thirdchargeqc is brought near the conductor.(explainyouranswer)
