Here you will learn more about electricity.
What is electricity? Electricity is a form of energy or the flow of electrons.
The atom has a center called nucleus. The nucleus contains positively
charged particles called protons and negatively charged particles called electrons. The negative charge of
an electron is equal to the positive charge of a proton. When the balancing force
between proton and electrons is leveled by an outside force, the atom may gain
or lose an electron. If the electrons are "lost" froman atom, the electron forms
an electric current.
Electricity is one of our widely used forms of energy. Secondary electricity
comes from other resourses of energy such as coal, natural gas, oil, and
others. These resourses are called primary sourse.
Static Electricity
What is Static Electricity
Static electricity is an electric charge built up on a person or object through
friction. It's an occasional annoyance in seasons with low humidity, but can be
harmful in some situation.
Static energy doesn't form in currence. It's generated by rubbing two non-
magnetic objects together. Yet it is not the friction that causes the static electricity
but it is the strong forces that pulls the electrons.
In conclusion static energy occurs when there is an imbalance of + & -
charges.
Solar Electricity
Photovoltaic
Photovoltaic (PV) means solar energy (from sunlight). PV systems use
sunlight to power ordinary electrical equipment (e.g. computers, lighting, etc.).
The process converts solar energy into electricity. A PV cell contains two or more
thin layers of semi-conducting material. The most common is silicon. When the
silicon is exposed to sunlight, it generates electrical charges and can be
conducted by metal contact called direct current (DC). Multiple cells connect
together and fuse to form a module (panel). Any number of modules can
be connected to give the electrical output.
PV systems supply electricity to many applications in UK from system
supplying power to city buildings. The main interest in UK is the Grid
Connect PV Systems. This system is connected to the local electricity network.
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