Recent content by bneb

Still just learning the basics here so is q = -1, r = .1, and \epsilon_0 = 8.854187817...×10^-12 F/m as per http://en.wikipedia.org/wiki/Electric_constant?

Homework Statement 108 electrons are equally spaced around a circle of radius 10.0 cm. What is the electric field at the center of the circle? What would be the electric field be at the same location if one electron was removed? Homework Equations \begin{flalign*}E & = & & k \...