Question

Four charges of same magnitude q are placed at the four corners

Answer 1

if u mean electric field intensity this is the answer hop tht hlp sry if its a littl messy thts how i write

its actlyy tiwice tht much i accdntly calculated only two of the field not all

so the totl E =to 2/2kq/2a2.

Answer 2

Answer:

0

Explanation:

Plz find attached image for the diagram of forces. In this on each corner of square there is a force acting on centre. Since the forces are equal in magnitude but opposite to each other so they will cancel each other eventually. So force will be zero on the at the center.