Vector Calculus for Electromagnetism 8 : The Normal Vector

In this video I continue with my tutorials which cover the necessary vector calculus for classical electromagnetism which is pitched at university undergraduate level. Specifically in this video I discuss how we calculate the vector which is perpendicular to or 'normal' to a function. This is important for Lagrange Multipliers and our studies of electromagnetism. The tutorial videos cover a range of vector calculus topics such as grad, div, curl, the fundamental theorems, integration by parts, the Dirac Delta Function, the Helmholtz Theorem, spherical polar co-ordinates etc. I hope it's of use!! Thank you for watching and I hope that this matches your requirements. Please feel free to provide feedback via comments and share with your friends. See my website for more: www.universityphysicstutorials.com Follow me on Twitter @a.beatty503 Follow me on Facebook @UniversityPhysicsTutorials