In this problem we willl examine an "electric dipole". many systems can be viewed as consisting of equal and opposite electric charges separated by molecule nacl). thus, t is important to understand their cumulative electrical effect on their surroundings. using a = 0.1 m and d = 1 m, determine the net electric force on q then repeat this but use d = 2 m. by what factor did the net electric force change? explain this result. note that the distance d extends from q to the point halfway between the other two charges b: now use a binomial expansion to expand the electric force from each charge in the dipole in terms of a/(2d). show that after "adding" the electric forces due to each charge that the first remaining term depends upon 1/d3
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