For more information about Professor Shankar's book based on the lectures from this course, Fundamentals of Physics: Mechanics, Relativity, and Thermodynamics, visit bit.ly/1jFIqNu. Fundamentals of Physics, II (PHYS 201) The mechanism by which electric currents produce a magnetic field (Law of Biot-Savart) is discussed in greater detail. The field due to a single loop and an infinite wire are computed. Ampere's Law is derived. The operation of the DC electric motor is used to illustrate the torque generated on moving charges in a magnetic field. 00:00 - Chapter 1. Review of Magnetic Fields 14:00 - Chapter 2. Torque on Charge moving in Magnetic Field 20:56 - Chapter 3. Magnetic effects produced by electric currents 51:26 - Chapter 4. Ampere's Law Complete course materials are available at the Open Yale Courses website: open.yale.edu/courses This course was recorded in Spring 2010. For more information about Professor Shankar's book based on the lectures from this course, Fundamentals of Physics: Mechanics, Relativity, and Thermodynamics, visit bit.ly/1jFIqNu.