ILLUSTRATION 1.14 Consider three charges ,

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

Problem

ILLUSTRATION 1.14 Consider three charges

q_1

q_2

, and

q_3

, each equal to

q

, at the vertices of an equilateral triangle of side

l

. What is the force on a charge

Q

placed at the centroid of the triangle?