A charge -300e is uniformly distributed along a circular arc of radius 4.00 cm, which subtends an angle of 40o.What is the linear charge density along the arc? (b) A charge 300e is uniformly distributed over one face of a circular disk of radius 2.00 cm. What is the surface charge density over that face? (c) A charge -300e is uniformly distributed over the surface of a sphere of radius 2.00 cm. What is the surface charge density over that surface? (d) A charge -300e is uniformly spread through the volume of a sphere of radius 2.00 cm. What is the volume charge density in that sphere?

A charge -300e is uniformly distributed along a circular arc of radius 4.00 cm, which subtends an angle of 40o.What is the linear charge density along the arc? (b) A charge 300e is uniformly distributed over one face of a circular disk of radius 2.00 cm. What is the surface charge density over that face? (c) A charge -300e is uniformly distributed over the surface of a sphere of radius 2.00 cm. What is the surface charge density over that surface? (d) A charge -300e is uniformly spread through the volume of a sphere of radius 2.00 cm. What is the volume charge density in that sphere?