# The magnitude of the electric field

## Homework Statement

Calculate the magnitude of the electric field at the center of a square 42.5cm on a side if one corner is occupied by a −38.2μC charge and the other three are occupied by −27.0μC charges.

## The Attempt at a Solution

E=k(q/r^2) the direction of the electric field will be towards the -38.2μC charge