Two equal sized charged spheres, Sphere A and Sphere B have charges of and respectively. The spheres are separated by a straight-line distance . The net electric field produced by spheres has a null point along at a distance of m from Sphere A. What is the ratio of the magnitude of the charge of Sphere B to that of Sphere A?
Point charges and are placed 1.0 m apart. The point is at the midpoint of the two charges’ positions.
What is the magnitude of the electric field produced by the charges at ?
What magnitude force would act on a charge if it was located at ?
Point charges C are fixed on the -axis at m and m. What charge must be placed at the origin so that the electric field vanishes at m, m?
Point charges are placed at the four corners of a rectangle as shown. The charges’ magnitudes are: What is the electric field in the plane of the rectangle at the point ?