A solid sphere made of plastic has radius
R and carries a charge Q uniformly located
throughout its volume. Using the Gauss Law,
which equation gives the electric field inside
the sphere?
E(4\pi r^(2))=(Q)/(\epsi lon_(0))(r^(3))/(R^(3))
E(4\pi r^(2))=(Q)/(\epsi lon_(0))(3r^(3))/(4\pi R)
E(4\pi r^(2))=0
E(4\pi R^(2))=(Q)/(\epsi lon_(0))
E(4\pi r^(2))=(Q)/(\epsi lon_(0))