E & M UNIT 07 - Electromagnetism

EM INDUCTION (including Faraday’s Law and Lenz’s Law)
(A) Students should understand the concept of magnetic flux, so they can:
(1) Calculate the flux of a uniform magnetic field through a loop of arbitrary orientation.
(2) Use integration to calculate the flux of a non-uniform magnetic field, whose magnitude is a function of one coordinate, through a rectangular loop perpendicular to the field.
(B) Students should understand Faraday’s law and Lenz’s law, so they can:
(1) Recognize situations in which changing flux through a loop will cause an induced emf or current in the loop.
(2) Calculate the magnitude and direction of the induced emf and current in a loop of wire or a conducting bar when the magnitude of a related quantity such as magnetic field or area of the loop is changing at a constant rate.
(3) Calculate the magnitude and direction of the induced emf and current in a loop of wire or a conducting bar when the magnitude of a related quantity such as magnetic field or area of the loop is a specified non-linear function of time.
(C) Students should be able to analyze the forces that act on induced currents so they can determine the mechanical consequences of those forces.