Flux and the normal form of Green's theorem

Description
The flux of a vector field across a plane curve is defined and explained by Prof. Denis Auroux in this video tutorial. The normal vector of a curve is introduced and the dot product of F and n is defined. The normal form of the Green's theorem is also explained.
Prof. Denis Auroux, Maths, Fall 2007,18.02 Multivariable Calculus: 23: Flux, Massachusetts Institute of Technology: MIT OpenCourseWare),http://ocw.mit.edu (Accessed September 28,2011). License: Creative Commons BY-NC-SA:http://ocw.mit.edu/terms/#cc