Question

What is the electric force between two charged particles (q1 = +5 C and q2 = +6 C) if the charges are 0.5 meters apart?

A. 60 N
B. 120 N
C. 5.4 × 1011 N
D. 1.08 × 1012 N

Answer 1

|F| = k q1q2/r^2


where k = 1/4pi(epsilon_o)


|F| = 1/(4 x 3.14 x 8.85 x 10^-12) x ( 5 x 6/0.25 ) = 1.08 x10^12 N