So you are hopefully (read: not) familiar with the electric field due to an infinite line of charge. But what if the line of charge is only infinite in one direction? Say the line of charge extends from the origin to positive infinite on the x axis. What is the electric field at a point a on the y axis? This horrible article will explain how to figure that out. Continue reading »
Feb 112010
From your intro physics or circuits course, you have probably become familiar with how to find the equivalent resistance of a network by breaking it down into series and parallel components. However, not all networks are strictly series or parallel. In this article I’ll walk you through one method of solving for equivalent resistance of a network — specifically by placing a test voltage on the start of the network and solving for currents and internal nodal voltages.
Feb 092010
This section is for integrating and differentiating and nerding.