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Intended for L1 ST/SM (LMD) students, this booklet offers a rigorous, step-by-step introduction to the basics of electrostatics for conductors and capacitors. After recalling the properties of a conductor in equilibrium (zero internal field, boundary conditions), the text uses symmetries and Gauss's theorem to establish field and potential. It introduces self and mutual capacitance, stored energy and electrostatic pressures, then series/parallel associations useful for circuits. Emphasis is placed on the physics behind the equations (role of geometry, Faraday cages, geometry/dielectric dependence of C). Fully corrected exercises, graduated from standard to realistic (charge sharing, potential equalization), train reasoning and control of orders of magnitude. Harmonized notations ( 0, s, E, V, Q) and explicit assumptions (edge effects, linear, isotropic, homogeneous media) secure learning and prepare for real dielectrics and electromagnetism.
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Mohammed RASHEED, professor and scientist in applied sciences (University of Technology-Baghdad; University of Angers), works on nanotechnology, thin films, optics, materials, ceramics, polymers, lasers, modeling and image processing. Author of >220 articles, >70 collaborations in >10 countries; reviewer for >200 journals.
