Intro to brushed permanent magnet DC motors, part 1/2 (Kevin Lynch)

For more information, see nu32.org. This video is a supplement to the book "Embedded Computing and Mechatronics with the PIC32 Microcontroller," Lynch, Marchuk, and Elwin. It is part of Northwestern University's ME 333 Introduction to Mechatronics.
L-comp: Based on Lorentz' force law, name three ways to increase the force F acting on a conductor passing through a magnetic field.