The Electron,
Name of Electricity came from the Greek word elektron. But tragedy is we haven’t seen electron yet. But we can measure it by various measurement devices like meters, oscilloscope, etc.
We have also found ways to make them turn motors, light up light bulbs, and power cell phones, computers,and thousands of other really cool things. What is electricity though? Actually, that is a very good question.
First we have to understand fundamental of Atom.
Atom is made up of three types of particles. they are proton, neutron and electrons. Proton has positive charge and electron carries negative charge. proton and neutron are larger in size compared to electron. Proton and neutron are not same in size but they have equal and opposite charges. So that net charge becomes Zero.
Electrons are moving in orbits. When we apply energy, electron becomes free and atom has net positive charge and also called iron.
Now amount of energy require to make electrons free depends on type of atom. When atom is of Plastic then electron stuck very hardly. Huge amount of energy can’t make them free from their shell.
And in opposite side, In good conductor like Aluminum, with little amount of energy electron becomes free from their shells.
There is one fundamental property of Charges: Like charges repel each other and Opposite charges attracts each other. Now, what happen is that if you push one electron near to other electron than one will push another and chain of this reaction.
So, Fundamentally electricity is nothing but charges: both positive and negative.
Actually What is Electricity??
Now, we know that similar charges repels and opposite charges attracts each other. So, We can say that there is a magical field around these charges because of this phenomena happens. That is nothing but electrostatic field.
At one side of the bulb positive charge is there and on other side negative charge is there. As we know that opposite charges attracts each other, So charges will passes through the bulb filament and will light up the bulb. Movement of this charges is called Current. Due to these charge movement means current invisible field created called Magnetic field. At the both side of the bulb charge difference is there called Voltage or Potential difference. We can say that Electrostatic field generated by Voltage and Electromagnetic field generated by current.
Now, you have a brief answer for the question: What is electricity???