Four point charges, A, B, C, and D. are placed at the corners of a square with side length L. Charges A, B, and C have charge + q, and D has charge - q. (Figure.1) If you calculate W, the amount of work it took to assemble this charge configuration if the point charges were initially infinitely far apart, you will find that the contribution for each charge is proportional to , In Throughout this problem, use / in place of Arco the space provided, enter the numeric value that multiplies the above factor, in W. > View Available Hint(s) W =ox bg) Previous Answers Correct The hints led you through the problem by adding one charge at a time. A little thought shows that this is equivalent to simply adding the energies of all possible pairs: W = 176 RBA - RDA - 1 - Note that this is not equivalent to adding the potential energies of each charge. Adding the potential energies will give you double the correct answer because you will be counting each charge twice. Part B Which of the following figures depicts a charge configuration that requires less work to assemble than the configuration in the problem introduction? Assume that all charges have the same magnitude q. (Figure 2) O figure a O figure b figure c Submit Request Answer Provide Feedback Next > Figure