Question

Three charged particles are placed at the corners of an equilateral triangle of side 1.2

m. The charges are +4 μC, -8 μC, and -6 μC. Calculate the magnitude and direction of

the net force on each due to the other two.

Answer 1

$F_1=\frac{kq_3q_2}{r^2}=+300~mN,$

$F_2=\frac{kq_3q_1}{r^2}=-150~mN,$

$F_3=\frac{kq_1q_2}{r^2}=-200~mN.$