| 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 |
| Conductors |
| 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 |
| Electric current |
| Electric current and resistors |
| Electric energy tutorial energy sources can basically be broken into renewable and depletable sources, which ultimately originate from space and terrestrial sources, respectively. The space sources include solar and lunar origins where the latter gravitational energy results in tidal flows. The sun provides directly useable energy as well as indirectly providing hydro, wind, ocean (thermal & current), and even biomass through photosynthesis |
| 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 |
| L’énergie dans tous ses états pdf file, en Français |
| 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 |
| Régime alternatif sinusoïdal pdf file, en Français |
| Régime alternatif sinusoïdal pdf file, en Français |
| Résistance d'un fil en Français |
| Resistors and Ohm's law |
| 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 |
| Tension électrique en Français |
| Wisselstroom theorie pdf file, in Dutch |
Resistivity of a material  |
| Electrical Conductivity and Resistivity |
| 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, ... |
| Resistivity specific electrical resistance, Resistivity |
| Resistivity and Temperature Coefficient at 20 C |
| Résistivité d'un matériau conducteur résistivité d'un matériau conducteur, en Français |
| Specific resistivity r of conductors Specific resistivity r of conductors |
| Temperature Coefficient of Resistance |
| Temperature coefficient of resistivity |
| Temperature coefficient of resistivity Temperature coefficient of resistivity, pdf file |
| Temperature coefficient of resistivity Temperature coefficient of resistivity |
| What is electricity? Electricity is a physical phenomena resulting from the existence of a charge of subatomic particles, and from the interaction of these charges, Electrons in Motion |
| Horizontaal |
| Speed Of Electricity |
| Drift velocity and current How fast must free electrons move in a wire to produce a decent current? |
| Electrons, Flow, and Conductors |
| Electric Current The current is simply the ratio of the quantity of charge and time |
| Electric Currents What is an electric current? How fast do electrons move in conductors? Resistivity |
| How Fast do Electrons Travel |
| Microscopic Theory of Electrical Conduction pdf file |
| Microscopic view of Ohm's law |
| Speed Of Electricity how fast an electric current is flowing in any conductor |
| Speed Of Electricity |
| Speed Of Electricity How fast does electricity flow? |
| Speed of electricity how fast electrons flow in a wire, Electric current, How Fast do Electrons Travel, How fast does electricity flow? How fast does electricity flow? |
Saturday, March 20, 2010
Basic theory about electricity
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