Three infinite planes each with uniform surface charge density +`sigma` are kept in such a way that the angle between any two plate is `60^(@)`. The electric field at centre of triangle

Options

A. `(sigma)/( 2 in_(0)) ( sqrt(3) hati + sqrt(3) hatj)`
B. `(sigma)/(2 in_(0)) ( sqrt(3) hatj)`
C. `(sigma)(2 in_(0)) ( sqrt(3) hatj)`
D. Zero

Answer

D

Explanation