The streamlines from charges in the previous topic of “Coulomb’s law and electric field intensity” are actually not physically present or visually observable, but when these streamlines are drawn, they become a helpful tool to represent the presence of something. The term of electric flux also shows what the streamlines

Now that we have established the basics of vector analysis , it is time to start our journey on Electromagnetic (EM) field theory. We start at first with Coulomb’s law and then move on to the other important laws before deriving Maxwell’s equations. What is Coulomb’s law? Coulomb’s law was