Suppose i have a spherical insulating shell with inner radius r and outer radius r. the shell has a uniformly distributed charge of +q. what is the charge density on my shell? 3q / 4pi (r^3) 3q / 4 pi (r^3 - r^3) 3q / 4 pi (r^3 - r^3) 3q / 4 pi (r^3) [5 points] suppose i have a conducting sphere of radius r. i place a net charge of +q on the sphere. what is the charge density inside the sphere? zero