# Four charges q q q q placed at corners A B C D of a square of side a arranged in a given order calculate intensity at the centre of a square

22 Points
4 years ago
Assuming by intensity you mean electric field intensity.If you draw the electric field vectors for th
(where r is length of the square) but different directions. If you add up the vectors then they will add up to 0.$\frac{kq}{(r^{2}/2)}$Assuming by intensity you mean electric field intensity.If you draw the electric field vectors for the centre of the square you will find that all vectors have equal magitude=