How does electricity work? Principle of operation
In this video we learn how electricity works from the basics of the free electron in the atom, through conductors, voltage, current, resistors, leds, capacitors and transformers.
An atom is a positively charged nucleus surrounded by a cloud of moving particles: these are negatively charged electrons. In conductive materials, such as a copper wire, some electrons are "wandering", they pass from one atom to another: they are called "free electrons". Electric current is simply the movement of these free electrons in the conductive material.
There are several sources of energy. Some renewable energies have been known for a very long time, such as solar and wind power. Other, more recent energies such as marine energy or the thermodynamic process still require technological advances to be deployed throughout the territory.
By the combustion of fossil material such as coal, oil or gas (or uranium for nuclear power plants) heat is released. Thermal power plants are equipped with boilers in which cold water is heated. When burning, fuels give off heat.
This makes it possible to heat the water and transform it into steam, like water put in a heated saucepan, under pressure, the steam sets in motion a turbine which in turn drives an alternator (this is a synergistic energy to electrical energy converter) electricity producer. In nuclear power plants, there are several independent circuits to produce electricity.
How does electricity work? Principle of operation
In this video we learn how electricity works from the basics of the free electron in the atom, through conductors, voltage, current, resistors, leds, capacitors and transformers.
An atom is a positively charged nucleus surrounded by a cloud of moving particles: these are negatively charged electrons. In conductive materials, such as a copper wire, some electrons are "wandering", they pass from one atom to another: they are called "free electrons". Electric current is simply the movement of these free electrons in the conductive material.
There are several sources of energy. Some renewable energies have been known for a very long time, such as solar and wind power. Other, more recent energies such as marine energy or the thermodynamic process still require technological advances to be deployed throughout the territory.
By the combustion of fossil material such as coal, oil or gas (or uranium for nuclear power plants) heat is released. Thermal power plants are equipped with boilers in which cold water is heated. When burning, fuels give off heat.
This makes it possible to heat the water and transform it into steam, like water put in a heated saucepan, under pressure, the steam sets in motion a turbine which in turn drives an alternator (this is a synergistic energy to electrical energy converter) electricity producer. In nuclear power plants, there are several independent circuits to produce electricity.
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