(Solved): Figure (a) shows a nonconducting rod with a uniformly distributed charge +Q. The rod forms a 10/25 ...

Figure (a) shows a nonconducting rod with a uniformly distributed charge +Q. The rod forms a 10/25 of circle with radius R and produces an electric field of magnitude Earc at its center of curvature P. If the arc is collapsed to a point at distance R from P (see Figure (b)), by what factor is the magnitude of the electric field at P multiplied? +2, P P (b) (a)