Dr. Mimoza Ristova, Professor
Course content:
Electric field in vacuum: Electrification. Electric forces. Conductors and insulators. Coulomb's law. Electric field. Field of a point charge. Electric power lines. Motion of a charged particle in an electric field. Electric dipoles.
Electric Flux and Gauss and Ostrogradsky's Theorem: Application of Gauss's Theorem. Field of a charged plane. Poisson's equation.
Electric potential: Work in an electrostatic field, Potential energy in a Coulomb force field. Potential and voltage. Equipotential surfaces. Relationship between electric field strength and potential. Electric dipole potential.
Dielectrics in electric field: Polarization of dielectrics. Polarization vector. Electric field in dielectrics. Gauss theorem for dielectrics. Electric induction vector.
Electrical capacity: Capacitors. Series and parallel connection of capacitors.
Accumulation of electricity. Electrostatic field energy density. Potential energy of a charged body. Energy of a charged capacitor. Electrostatic field energy density. Constant electric current: Current strength. Current density. Electric field of a conductor through which current flows. Continuity equation. Ohm's law. Dependence of resistance on temperature. Ohm's law of resistance. Work and power of electric current. Joule's law.
Electromotive force: Ohm's law. Kirchhoff's rules. Series connection of resistors. Power in external current. Classical theory of the conductivity of metals: Current carriers in metals. The Tolman-Stewart experiment. Elementary classical thorium of metals. Derivation of Ohm's law, Joule-Lenz law, Wiedemann-Franz law with classical theory. Disadvantages of classical theory. Electron work output. Contact potential. Thermoelectric phenomena: Zebekov, Peltiev and Thomson effect.
Electric current through liquids: Dissociation. Ohm's law for electrolytes. Electrolysis.
Faraday's Laws of Electrolysis. Electric current through gases: Ionization and recombination. Involuntary discharge. Self-discharge. Collisional ionization. Electronic avalanche and smoldering discharge. Magnetic field: Magnetic interaction of two current elements. Biot-Savard-Laplace law. Magnetic induction.
Eddy character of the magnetic field: Magnetic lines of force. Ampere's Law of Circulation of Magnetic Induction. Magnetic field strength vector. The unit of current strength. Elementary current. Magnetic moment of current. Contour with current in a magnetic field. Mechanical work in a magnetic field. Magnetic flux. Gauss' theorem for magnetic induction. Lorentz force and application. Discovery of the electron. Hall effect.
Magnets: Ferromagnetism. Magnetic hysteresis. Paramagnetism and Diamagnetism.
Magnetization vector. Geomagnetism. Electromagnetic induction.
Law of Electromagnetic Induction: Lenz's Rule. Self-induction. Inductance. Inductance of a solenoid. Mutual induction. Energy and energy density of a magnetic field. Eddy (Foucault) currents. Obtaining a sinusoidal current. Principle of alternating current generator. Alternating current electric circuits. Inductive resistance. Capacitive resistance. Voltage resonance. Series and parallel connection of resistances. Power in an alternating current circuit. Three-phase currents. Transformers.
Fundamentals of electromagnetic field theory: Maxwell's equations.