
Electricity
nature
Electricity has found its way in all aspects of our
lives. We use it to light up our homes, cook our food,
run on TV sets, appliances.
Using the batteries in cars, we run the engines and
light up our way in the darkness.
As this, you observe the importance of electricity.
Looking around everywhere, you will find so many
appliances, devices, machines use the electricity. It is
wonderful that we are so much to this single form of
energy.
But, really what is electricity? Where is its source?
How does it work? Before answering to all these
questions, let’s have a discuss about atoms and their
structure.
The entire materials world is made up of atoms that in
turn are made up of smaller particles, namely protons,
neutrons and electrons.
Electrons by revolving around a center, looks like a
moon.
In the center, there is nucleus made up of Protons and
neutrons.
Electron has a negative charge, while protons have
positive charge, and its name reveals, neutron have no
charge.
Different Layouts of atoms have provided various
elements.
Any element is 118 ones which make whole universe.
Oxygen is the element, essential for our life that by it
we can breathe.
Each atom has its specific number of protons and
electrons. In a balanced state, all the atoms have equal
number of electron and proton which make it stable and
neutral.

Conductivity in some materials is better than others.
One the other hand, resistance is a way of knowing the
amount of electricity passed through a circuit. Here the
holding force of keeping electron is under
consideration.
In a sense, in a resistive line, electrons do not move
easily. These kind of materials all called insulators.
Plastic, rubber, cloths and glass as well dried are in
this category.
Materials with high conductivity are called conductors.
Metals such as copper, aluminum and silver are known for
their good conductivity.