PartA What is the electric potential Vtot at the center of the square? Make the

Question

PartA What is the electric potential Vtot at the center of the square? Make the usual assumption that the potential tends to zero far away from a charge. Express your answer in terms of g, d, and appropriate constants. View Available Hint(s) Previous Answers Correct Part B What is the contribution Ua, to the electric potential energy of the Express your answer in terms of q, d, and appropriate constants. View Available Hint(s) system, due to interactions involving the charge 2q? Previous Answers Correct

Explanation / Answer

d)

All the PE on the charge 2q will be converted to the KE of it.

So, KE of the charge 2q = (12 - 3*sqrt(2))*kq^2/d <------- answer

e)

PE of the system :

U = k*q*(-3q)/d + k*(5q)*(-3q)/d + k*(q)*(5q)/(sqrt(2)*d)

= -3k*q^2/d - 15*k*q^2/d + 5*k*q^2/(sqrt(2)d )

= ( 5/sqrt(2) - 18 )*k*q^2/d

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