It exists because of an excess or a deficiency of

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It exists because of an excess or a deficiency of electrons. Electron Proton Neutron Varieties: Positive (+) Negative (-) Electrical charge exists in discrete quantities, which are integral multiples of the charge on an electron -e , e = 1.602 × 10 -19 (C) 6.24 x 10 18 electrons carry a charge of 1 coulomb On the macroscopic level, charge is assumed to be “continuous” Charge is conserved ! What is Electromagnetics?
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16 What is Electromagnetics? Steps in Studying Electromagnetics Define basic quantities (e.g., E-field, H-field) Define the rules of operation (mathematics) of these quantities (e.g., Vector Algebra, PDEs) Postulate fundamental laws
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