Question

The figure below shows a pair of particles of charge Q and another pair of particles of charge q. The particle at the origin is free to move; the others are fixed in place. Should q be positive or negative if the net force on the free particle is to be zero and Q is (a) positive, (b) negative?​

Answer 1

hey mate where is the figure?

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Answer 2

Answer:

positive.....is the correct answer i think so