# How is electricity produced?

How is electricity produced?

Do you know how the electricity that reaches you is generated? In this article the World of Electrical will show you how electricity is produced, we demonstrate this through an experiment that you can also do. Come on guys!

With a very simple experiment, it is possible to discover how we consume daily is generated. In other words, it is possible to prove that the variation of a magnetic field that interacts with an electrical circuit gives rise to a force that is called the electromotive force.

What is a force?
When we hear this term it is normal to be scared, but you can rest assured that this is a much simpler term than it sounds and you know what it is! We explain this term throughout this article.

To perform this experiment you will need three elements:

A trapezoidal galvanometer: Which is a measuring instrument compared to a milliammeter, that is, a device that can show small variations in the electric current.
A coil: Which is a set of turns of a conductor that is usually copper, wrapped and a core that can be made of many materials, including air.
A magnet: This is a material that generates a magnetic field around itself, naturally made up of magnetite and artificially made of magnetized metal alloys.
Elements for the experiment.
Perform this experiment only with these 3 elements!

When someone talks about electricity and devices running on electricity, they’re basically referring to the orderly movement of electrons interacting with an electrical circuit.

For electrons to move, something like an impulse is needed to get them out of place, this impulse is called the electromotive force.

Many people know the electromotive force with another name: potential difference (DDP). However, the vast majority of people know it as an electrical voltage.

What many people do not know is that the magnetic field of a magnet when it moves close to a coil generates this electromotive force. A voltage that causes electrons to move and with that movement, an electric current is generated.

Assembly and Realization
Setting up this experiment is quite simple. Connect the coil to the galvanometer terminals and the structure will be ready!

Now start moving the magnet through the center of the coil, note that the deflection of the pointer occurs in the galvanometer, and this movement that the pointer makes is the measurement and indication of a small electrical current that is moving through the coil.

See the experiment working.
Test it yourself and see how the current is generated!

Knowing that a current is being measured by the galvanometer, we can conclude that there is also an electromotive force, as this force is necessary for the current to move.

This small experiment and explanation explain Faraday’s law. Michael Faraday was a man who in 1831 performed this experiment for the first time and proved everything he had been studying about electromagnetism.

Our entire generation system is based on this experiment, as the large generators in a hydroelectric plant are large electromagnets being rotated close to the large copper coils. The principle is exactly the same!

Now that you know how your electricity is generated, do you want to discover more curiosities about where that energy is produced? If so, watch this video from the Mundo da Elétrica channel, which shows several curiosities about the largest hydroelectric plant in the world! And if you like, let me like it in the video to help us.

riment it is possible to discover how we consume daily is generated. In other words, it is possible to prove that the variation of a magnetic field that interacts with an electrical circuit gives rise to a force that is called the electromotive force.

What is a force?
When we hear this term it is normal to be scared, but you can rest assured that this is a much simpler term than it sounds and you know what it is! We explain this term throughout this article.

To perform this experiment you will need three elements:

A trapezoidal galvanometer: Which is a measuring instrument compared to a milliammeter, that is, a device that can show small variations in the electric current.
A coil: Which is a set of turns of a conductor that is usually copper, wrapped and a core that can be made of many materials, including air.
A magnet: This is a material that generates a magnetic field around itself, naturally made up of magnetite and artificially made of magnetized metal alloys.
Elements for the experiment.
Perform this experiment only with these 3 elements!

When someone talks about electricity and devices running on electricity, they’re basically referring to the orderly movement of electrons interacting with an electrical circuit.

For electrons to move, something like an impulse is needed to get them out of place, this impulse is called the electromotive force.

Many people know the electromotive force with another name: potential difference (DDP). However, the vast majority of people know it as an electrical voltage.

What many people do not know is that the magnetic field of a magnet when it moves close to a coil generates this electromotive force. A voltage that causes electrons to move and with that movement, an electric current is generated.

Assembly and Realization
Setting up this experiment is quite simple. Connect the coil to the galvanometer terminals and the structure will be ready!

Now start moving the magnet through the center of the coil, note that the deflection of the pointer occurs in the galvanometer, and this movement that the pointer makes is the measurement and indication of a small electrical current that is moving through the coil.

See the experiment working.
Test it yourself and see how the current is generated!

Knowing that a current is being measured by the galvanometer, we can conclude that there is also an electromotive force, as this force is necessary for the current to move.

This small experiment and explanation explain Faraday’s law. Michael Faraday was a man who in 1831 performed this experiment for the first time and proved everything he had been studying about electromagnetism.

Our entire generation system is based on this experiment, as the large generators in a hydroelectric plant are large electromagnets being rotated close to the large copper coils. The principle is exactly the same!

Now that you know how your electricity is generated, do you want to discover more curiosities about where that energy is produced? If so, watch this video from the Mundo da Elétrica channel, which shows several curiosities about the largest hydroelectric plant in the world! And if you like, let me like it in the video to help us