Question

interpreting electric field diagrams
this picture represents the electric field diagram between two particles with static charges.
do the two particles have the same charge? no
if the particles are free to move, what affect will the two particles have on each other?
if a third particle was added to this field with a positive to?
added between a and b,
intro
done

Explanation:

Electric field lines go from positive to negative charges. Since the field lines are going from one particle to the other, they have opposite charges. Opposite - charged particles attract each other.

Answer:

They will attract each other.