Three identical point charges of occupy three corners of a square of side

PHYSICS · Subjective · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

Three identical point charges of

+4.0\,\mu\text{C}

occupy three corners of a square of side

0.30\,\text{m}

. The fourth corner is empty. Determine the magnitude and direction of the net electrostatic force on a

+1.0\,\mu\text{C}

point charge placed at the center of the square.