(Solved): please write a clear explaination. thank you. will thumbs up 1. In the following figure, the four pa ...

1. In the following figure, the four particles form a square of edge length $$a=4.00\mathrm{cm}$$ and have charges $$q\mathrm{I}=1.0\mathrm{nC},q2=2\mathrm{nC},q3=?3.0\mathrm{nC}$$, and $$q4=?4.0\mathrm{nC}$$. (a)In unit vector notation, what net electric field do the particles produce at the square's center? What is the magnitude of the electric field at the center? $$\left(\mathrm{lnC}=10^{?9}\mathrm{C}\right)10$$ points (b) Calculate the electric potential at the center. 5 points