Sadiku, M. N. O. (2015). Elements of Electromagnetics. 7th ed. New York: Oxford University Press.
where E is the electric field, ρ is the charge density, and ε₀ is the electric constant (permittivity of free space). principles of electromagnetics sadiku ppt
Electromagnetics is a fundamental branch of physics that deals with the study of the interactions between electrically charged particles and the electromagnetic force, one of the four fundamental forces of nature. The principles of electromagnetics are crucial in understanding various phenomena in physics, engineering, and technology, including electromagnetic waves, antennas, transmission lines, and electromagnetic interference (EMI). This paper provides an overview of the principles of electromagnetics based on Sadiku's textbook, "Elements of Electromagnetics". Sadiku, M
The study of electromagnetics begins with vector analysis, which is a mathematical framework for describing physical quantities with both magnitude and direction. Vectors are used to represent electric and magnetic fields, and various operations such as addition, subtraction, dot product, and cross product are used to manipulate and analyze these fields. (2015)
where B is the magnetic field, J is the current density, and μ₀ is the magnetic constant (permeability of free space).
The magnetic field is a vector field that represents the force per unit current on a test current. It is produced by current-carrying conductors and is described by the Biot-Savart law. The magnetic field is a solenoidal field, meaning that it can be expressed as the curl of a vector potential.