A point charges `q` is located between two mutually perpenicular conducting hlaf-planes . Its distance from each half-plane is equral to `l`. Find the molecules of the vector `p` is perpendicular to the planes.

Explanation

`F = (sqrt(2) q^(2))/(4pi epsilon_(0) (2l)^(2)) + ((-q)^(2))/(4pi epsilon_(0) (2 sqrt(2) l)^(2))`
`= ((2 sqrt(2) - 1) q^(2))/(32pi epsilon_(0) l^(2))` (It is attractive)