Question

Electric charges of - 10 nC, + 10 nC, and - 20 nC are located in the x-y plane at positions of (0, 0.5), (0, -0.5), and (0.5, 0), respectively, where the positions are expressed in m. What is the value of the electric potential at the position of the - 20 nC charge, and what is its electrical potential energy?

What is the magnitude of the force exerted on the - 20 nC charge by the 10 nC charge?

What is the magnitude of the force exerted on the - 20 nC charge by the -10 nC charge?

Electric charges of - 10 nC, + 10 nC, and - 20 nC are located in the x-y plane at positions of (0, 0.5), (0, -0.5), and (0.5, 0), respectively, where the positions are expressed in m. What is the direction of the net force on the - 20 nC charge?

Answer 1

The answers are in the images. Page number is mentioned at right top. As per Chegg's answering guidelines, I need to answer only the 1st 4 subparts. However here I answer the total question. Note that from the symmetry of the problem, you can easily predict the direction of net force on -20 nC charge earlier. However, here I have done detailed analysis for finding the direction for better understanding, and you can use the same method for finding direction of such other similar problem.