[" 24: Two large,thin metal plates are "],[" parallel and close to each other.On "],[" their inner faces,the plates have "],[" surface charge densities of opposite "],[" signs and of magnitude "],[17.0times10^(-22)C/m^(2)." What is "E" : "],[" a.in the outer region of the first "],[" plate,"],[" b.in the outer region of the second "],[" plate,and (c) between the plates? "]