Two large, thin metal plates are parallel and close to each other. On their inner faces, the plates have surface charge densities of opposite sign and of magnitude `17.0 xx 10^(-11)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?

Explanation

`sigma=1.70 xx 10^(-11) Cm^(-2)`

`a. E_(1)=(sigma)/(2epsi_(0)) -(sigma)/(2epsi_(0))=0`
b. `E_(2)=(sigma)/(2epsi_(0)) -(sigma)/(2 epsi_(0))=0`
`c. E_(3)=sigma/epsi_(0) =(1.7 xx 10^(-11))/(8.85 xx 10^(-12)) =1.9 NC^(-1)`