Electric Circuit With Diagram - Electric charge is nothing but flow of electrons from one object to another. We all know that an atom is made up of electrons, protons and neutrons (look at the diagram on the right that explains the structure of an atom). Electrons are negatively charged and protons are positively charged while neutrons are neutrally charged.. ABOUT THE AUTHOR THOMAS P. SMITH, P.E. received his B.S. in Electrical Engineering in 1982, and his B.S. in Education in 1981 from the University of Nebraska. Mr. Smith has over 20 years of electric power systems design, analysis and training experience..