The basics of electricity

Electricity:
Basic theory
Electric circuit theory	Electrostatics	Illumination: types	Magnetism
Electrical power systems	General	Induction heating	RLC circuits (AC)
Elektrische huisinstallatie	Illumination	Magnetic materials	Safety Equipment

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Basic theory about electricity

AC circuits

AC circuits a site using animations to explain AC circuits, impedance, phase relations, resonance and RMS quantities

Alternating current alternating current, pdf file

Atomic structure

Basic AC theory this "kind" of electricity is known as Alternating Current (AC)

Basic concepts of electricity

Basic concepts of DC electricity electricity is the flow of free electrons in a wire

Basics of electricity direct current DC, alternating current AC, atoms, magnetisme, voltage resistance, Eddy currents, animated

Basics of electricity pdf file

Complex numbers complex numbers

Courant et résistance électrique, en Français, pdf file

CURRENTS AND OHMS LAW

DC circuits online exercises

Electrical conductors electrical conductors, resistivity, range of resistivity values

Electrical Conductivity and Resistivity

Electric current

Electric current and resistors pdf file

Electricity the basics about electricity: atoms, cells & batteries, circuits, circuit symbols, current electricity, voltage & currents, resistance & resistors, Ohm's Law, varying resistance, variable resistors, static electricity, kWh, electromagnetisme, motor effect

Électricité en Français

Electrical current electrical current is the net flow of electric charge in a material, pdf file

Elektrische Stromstärke in German

Filters

Heating effects of currents electric power, heating effect of electric current, emf, electromotive force

L'atome et l'électron en Français

Lois électriques pdf file, en Français

Microscopic view of Ohm's Law when electric current in a material is proportional to the voltage across it, the material is said to be "ohmic"

Ohm's law and resistor circuits Ohm's law: determine the equivalent resistance of 2 or more resistors connected in series and parallel

Power factor power factor

Reactance and impedance: capacitive

Reactance and impedance: inductive

Reactance and impedance: R, L, and C

Régime alternatif sinusoïdal pdf file, en Français

Résistance d'un fil en Français

Resistors and Ohm's law

Resistors and Ohm's Law resistors in serie, resistors in parallel, networks of resistors

Resistor circuits Kirchhoff's current law, voltage reference directions, Kirchhoff's voltage law, Ohms law, voltage and current sources, energy transfer, series circuits, parallel circuits, node equations of resistor circuits, equivalent resistance of general resistor circuits, Thevenin and Norton equivalent circuits, superposition, analysis of resistor circuits with sinusoidal inputs, node analysis of circuits with controlled sources, Java included

Resonance resonance

Simple frequency selective circuits doc file

Tension électrique en Français

Wisselstroom theorie pdf file, in Dutch

Resistivity of a material

Electrical resistivities The electrical resistivity or specific resistance ρ is the resistance between the opposite faces of a metre cube of a material. The values given below are in ohm metre units (Ω m)

Electrical resistivity in general, electrical resistivity of metals increases with temperature, while the resistivity of semiconductors decreases with temperature

Electrical resistivity as a function of temperature electrical resistivity as a function of temperature, pdf file

Résistance et résistivité pdf file, en Français

Résistance électrique résistance électrique, en Français

Resistivity The resistivity of a material is dependent upon the material's electronic structure and its temperature. For most (but not all) materials, resistivity increases with increasing temperature, ...

Résistivité d'un matériau conducteur résistivité d'un matériau conducteur, en Français

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