Question

Three charges, each equal to q, are placed at the three. corners of a square of side a . Find the electric field at. the fourth corner.

Answer 1

Answer:

clearly

side of the square = a

diagonal =2^1/2 a

root 2 a

E1=E2=E3= K×q/(2^1/2a)^2

Enet=( E1^2+E2^2)^1/2 N/C