Two charges, a positive charge Q = 1.1 x 10–10 ... ...

    Two charges, a positive charge Q = 1.1 x 10–10 C and a negative charge of the same magnitude, are located 2 x 10–6 m apart. A third charge q = 10–17 C is located exactly between them. What is the magnitude of the force on charge q?
(A) 0 N
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in 14. Electrodynamics