Entry requirements

Algebra and geometry. Calculus. Mechanics I.

Aims

Electricity and magnetism are fundamental parts of physics with extensive technical application. The

goal of the course is to give a basic knowledge about electromagnetic fields and to give an

introduction electrical measurement techniques.

Content

Electrostatics: Electric charge, Coulomb's law, electric field and potential, the displacement vector,

Gauss's law, Millikan's experiment, capacitance, electric potential and field from electric dipole,

atomic dipoles, polarisation, dielectrics, electrostatic energy, forces in capacitors, capacitor batteries.

Electric current: current density, the continuity equation, Ohm's law, Kirchhoff's laws, Joule's law,

emf, non-linear resistances, temperature dependence of resistance, charging and discharging of

capacitors.

Stationary electromagnetism: magnetic field, magnetic force, Biot-Savart's law, the

current unit, magnetic dipoles, magnetic polarisation, dia-, para- and ferromagnetism, hysteresis, hysteresis loss, magnetic circuits, permanent magnets, boundary conditions of the magnetic fields.

Electromagnetic induction: Faraday's law, Lenz' law, self-induction, magnetic field energy, currents in R-L circuits, mutual inductance. Maxwell's equations.

Alternating currents : phase diagrams, the

jw- method, complex power, coupled circuits, the transformer, three-phase alternating currents.

Laboratory work: Oscilloscope, Capacitance experiments, Magnetic fields, Induction, Hysteresis,

Alternating current.

Instruction

Lectures, lessons and laboratory work.

Assessment

Examinations, which comprises both conceptual questions as well as ordinary problems, at the end

of the course. Passed laboratory course is also required. Homework assignments can be given

during the course.