Grade 11Electrostatics
A solid insulating sphere of radius R has a non uniform charge density that deals varies with r according to the expression p = Ar2, where A is a constant and r > R is measured from the cetre of the sphere. Show that (a) the magnitude of the electric field outside (r 5/5epsilon not r2 and (b) the magitude of the electric field inside (r 5/5epsilon not.
A solid insulating sphere of radius R has a non uniform charge density that deals varies with r according to the expression p = Ar2, where A is a constant and r > R is measured from the cetre of the sphere. Show that (a) the magnitude of the electric field outside (r 5/5epsilon not r2 and (b) the magitude of the electric field inside (r 5/5epsilon not.
