PHYS 230 Lecture Notes - Lecture 17: Common Application, Angular Velocity, Electric Field
Document Summary
So far in this class magnetic fields and electric fields have been fairly well isolated. Electric fields are generated by static charges, magnetic fields by moving charges (currents). In each of these cases the fields have been static we have had constant charges or currents making constant electric or magnetic fields. Today we make two major changes to what we have seen before: we consider the interaction of these two types of fields, and we consider what happens when they are not static. We will discuss the final maxwell"s equation, faraday"s law, which explains that electric fields can be generated not only by charges but also by magnetic fields that vary in time. It is not entirely surprising that electricity and magnetism are connected. We have seen, after all, that if an electric field is used to accelerate charges (make a current) that a magnetic field can result. What faraday discovered is that a changing magnetic flux generates an.