Two small insulating spheres with a radius of 3.00Ć10ā»Ā² m are separated by a large center-to-center distance of 0.455 m. One sphere is negatively charged, with a net charge of -1.90 μC, and the other sphere is positively charged, with a net charge of 4.10 μC. The charge is uniformly distributed within the volume of each sphere.
What is the magnitude E of the electric field midway between the spheres?
Take the permittivity of free space to be ε0 = 8.85Ć10ā»Ā¹2 C2/(Nā
m2).