Question

Three point charges (some positive and some negative) are fixed to the corners of the same square in various ways, as the drawings show. Each charge, no matter what its algebraic sign, has the same magnitude. In which arrangement (if any) does the net electric field at the center of the square have the greatest magnitude?

Answer 1

Answer:

The magnitude of the net field located at the center of the square is the same in every of arrangement of the charges.