Slide Presentations for ECE 329, Introduction to Electromagnetic Fields, to supplement “Elements of Engineering Electromagnetics, Sixth Edition” by Nannapaneni Narayana Rao Edward C. Jordan Professor of Electrical and Computer Engineering University of Illinois at Urbana-Champaign, Urbana, Illinois, USA Distinguished Amrita Professor of Engineering Amrita Vishwa Vidyapeetham, Coimbatore, Tamil Nadu, India
5.1 Gradient, Laplacian, and the Potential Functions
Gradient and the Potential Functions
B can be expressed as the curl of a vector. Thus A is known as the magnetic vector potential. Then
F is known as the electric scalar potential. is the gradient of F.
Basic definition of From this, we get
Potential function equations
Laplacian of scalar Laplacian of vector In Cartesian coordinates,