posted by Sarah .
The drawing shows a square, each side of which has a length of L = 0.25 m. Two different positive charges q1 and q2 are fixed at the corners of the square. Find the electric potential energy of a third charge q3 = -5 x 10-9 C placed at corner A and then at corner B. q1= 1.5e-9 and q2=4.0e-9
PHYSICS HELP! -
Without the figure, I have no idea which of the four cormers have q1 and q2 on them, nor where corners A and C are.