Charge between parallel plates :
Surface charge density is defined as the charge per unit surface area of surface charge distribution. i.e., σ=qS
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 having magnitude of 1.70×10−22 Cm−2 as shown in figure.
[Use ε0=8.85×10−12 Fm−1]
(i) The electric field E in the region in between the plates A and B is