A magnetic field is a sector of space that registers the incidence of a magnetic element.
A magnetic field is a sector of space on which a magnetic element affects . The magnitude expressed in amperes/meters that reflects how intense a magnetic force is is also called a magnetic field.
Before entering fully into the meaning of the concept, it is necessary to discover the etymological origin of the two words that give it shape:
- Campo comes from the Latin campus , which can be translated as "flat land" .
- Magnetic , on the other hand, derives from the Greek magnetikos , translatable as "relative to the magnet " and which is the result of the sum of two components of said language: the noun magnes , which means "magnet" , and the suffix -ico , which is used to indicate "relative to" .
What is a magnetic field
In the field of physics , the spatial region at whose points a magnitude is defined is called a field . The adjective magnetic , for its part, refers to what is linked to magnetism : the property that currents of electricity and magnets have to generate mutual rejections and attractions and other actions at a distance.
A point in a magnetic field can be specified from the magnitude and direction of a charge . That is why it is a vector field : the points of Euclidean space are associated with a vector.
Magnetic fields can be explained from the Lorentz force , which is the force exerted by the field when receiving a current of electricity or a charged particle. The electric charge of value X moves through space at a certain speed and experiences the result of a secant force that is proportional to the field and speed.
The magnetic field can be generated by a displacement current. In this case, the field varies in time . It can also have its origin in a conduction electric current that, if constant, creates a magnetic field that remains static.
The magnetic field can be generated in different ways.
Other information of interest
Other interesting facts about the magnetic field are the following:
- According to the International System, the unit of the magnetic field is the tesla . This is represented by the letter t . 1 Tesla is considered to be the magnetic field that a force of 1 newton ( N ) exerts on a charge of 1 coulomb ( C ).
- In the same way, we must not forget that another unit used to measure the aspect in question is the gauss ( G ). In this case we can say 1 tesla is equal to 10,000 gauss. It is true that this unit is not part of the aforementioned International System but its use is widespread.
- When analyzing and calculating a magnetic field, it is important to rely on elements such as the charge creating the field, the distance, the speed of the aforementioned charge, the permeability of free space and the unit vector.