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Free online electricity lessons for elementary school, middle school and high school.
Take advantage of scientific resources that can be used freely to discover electricity, the science that explains electrical phenomenons and electric circuits


Electrical components
Two-terminal electronic components
Basic electrical components
What's a resistor ?
How to determine a resistor value ?
Resistors effects in circuits
How to use a resistor ?
Characteristic curve of a resistor

How to build simple circuits and draw diagrams
How to build a basic electrical circuit
How to draw diagrams of electric circuits

The electric current
Conductors and insulators
Direction of electric current in a circuit
The dangers of electricity
Current intensity - units
how to measure current ?

The Voltage
The voltage and its units
How to measure a voltage ?
Voltage in open and closed circuits
Rated current and voltage for a lamp

Alternating voltage and current
Alternating currents effects on led
What are alternating current and voltage ?
Periodic alternating voltage and its properties
Measuring RMS voltage with a voltmeter

Serie circuits
What's a serie circuit ?
Series circuit properties
Short circuit in  series circuit
Current law in series circuits
Voltage law in series circuits

Parallel circuits
What's a parallel circuit ?
Some parallel circuits properties
Short circuits in parallel circuits
Nodes and branches in parallel circuits
Current laws in parallel circuits
Voltage laws in parallel circuit

Laws of electricity
Ohm's law
Current laws in series circuits
Voltage laws in series circuits
Current laws in parallel circuits
Voltage laws in parallel circuits

Generating electricity
Voltage for coil wires
What is an alternator ?
Alternating currents and voltages
Generating electricity in power plants

Electric power and energy
Electric power and power rating
Electric power received by an electrical device
Electric power consumption by an electrical device
Relationship between Electric power and energy