Charges q1 = +13nC for the first charge and q2 = -13nC for the second charge. The charges are arranged at the bottom of an equilateral triangle with each side being 13.0 cm. q1 is at the bottom left and q2 is at the bottom right. Point a is +6cm from q1 to the right and point b is -4 cm from q1 to the left and point c is at the vertex of the triangle.
a) Calculate the electric potential at point a, point b, and point c.
b) Now, place a charge of +12 nC at point a.
i. Calcule the work done by the electric field if I move the charge from point a to b.
ii. Calcule the work done by the electric field if I move the charge from point a to c.
I am really trying to understand this material, I tried working through it on my own but am not sure of my answers. For part a I got a = 0, b = 2.24 x 1019 and c = 0. I am not sure if these are correct, so seeing someone else work throught hem would be very helpful. For part b, I am very shaky on the matieral, for ii. I believe the total work done may be 0, but again, I am not two confident in that answer, and for part i I am not sure at all. Still attempting to work threw it. Any help is greatly appreciated.