Question

Four point charges are placed at the four corner of a square in two way a and b are shown below will electric field and at the centre of a square be same or a different into configuration and why

Answer 1

Answer:

In (b), positive charges and negative charges are kept at diagonal ends. Electric potential will be 0. Electric field due to two positive charges at center will cancel each other, since both are equally spaced from the center. ... Hence net electric field at the center =