Charges `q, 2q,3q` and `4q` are placed at the corners `A,B,C` and `D` of a square as shown
Channel: Doubtnut
Date: 2020-01-19

Charges `q, 2q,3q` and `4q` are placed at the corners `A,B,C` and `D` of a square as shown in the following figure. The directon of electric field at the centre of the square is along