(a) A charge of -330e is uniformly distributed along acircular arc of radius 3.75 cm,which subtends an angle of 42°. What is the linearcharge density along the arc?
C/m
(b) A charge of -330e is uniformly distributed over oneface of a circular disk of radius 1.95 cm. What is the surface charge density overthat face?
C/m2
(c) A charge of -330e is uniformly distributed over thesurface of a sphere of radius 1.95 cm. What is the surface charge density overthat surface?
C/m2
(d) A charge of -330e is uniformly spread through thevolume of a sphere of radius 1.95 cm. What is the volume charge density in that sphere?
C/m3