Electrophysics II

Electrostatics: Coulomb’s Law, electric fields, Gauss law, the electrostatic potential, Laplace’s equation, point charges, continuous charge distributions and dipoles, capacitors, dielectrics and field energy. Nernst-Planck equation and membrane potentials. Debye-Huckel theory of electrolytes: Solubility and electrophoresis of proteins, quasi-staic flow of charge, distribution of potential in volume conductors. Application of electrocardiography. Magnetic fields, Amperes laws; the law of Biot and Savart: Magnetic properties of matter. Faraday’s law of induction. Electrical circuits, oscillators, feedback, with application to medical instrumentation e.g pacemakers