Hello, readers welcome to the new post. Today we will discuss HOW ELECTROMAGNETIC COILS WORK. The electromagnetic coil also called an electrical conductor or electrical coil that consists of electrically conductive wires wounded about a certain structure. These wires can be wounded on a self basis means about air core or wounded about the iron. Electrical coils are basic electronic elements that offered inductance to electromagnetic circuitry.
There are different types of coils used for different applications. These coils can have different lengths, dia material, and some related parameters. Electromagnetic coils get power from the electricity so can on and off. Through varying, the strength of current their magnetic strength can be altered. In this post, we will cover different aspects to know about its working so let’s get started HOW ELECTROMAGNETIC COILS WORK
HOW ELECTROMAGNETIC COILS WORK
- The electromagnetic coil is a conductor such as a wire having the structure of spiral or coils.
- These coils are commonly used in electrical engineering for applications that have common interaction among the electric current and magnetic fields
- Common devices that used electromagnetic coils are generators motors transformer electromagnets.
- There are two common ways to produce a magnetic field first through providing a direct supply to the coil to produce a magnetic field and another way is to connect the coil to varying flux of the nearest body that will induce emf in that coil
- Due to ampere law, there is the magnetic shape of the circle will generate the conductor. The conductor in a winding shape enhances the strength of the field generated by the current provided.
- The field produced by the distinct turns of coils move through the center go coil and added to with other to make storing field
- As a result, the change in outer magnetic flux induces volts in conductor-like wire in the result of Faraday law
Production of Magnetic Field through Wire Coil
- The movement of charges produces the magnetic field. This phenomenon first time was introduced in the 19th century through an experiment when found that current passes through a wire generated the field about it and was observed in the changing of compass deflection.
- Where there is no current in the wire and no deflection across the meter needle. In results concluded that charges in motion have electrical fields across the objects through which current passes.
- The experiment told us that the current-carrying wire is like a magnet. Since the movement of electrons in the wire is in a certain direction so field also has a certain direction.
- The strength of the field across the wire is directly proportional to the current applied. High current has high field and less current has less field
- The loops of wire also have an effect on field strength larger loops will produce a more strong magnetic field
What is Electromagnet
- The magnetic that generated through the use of current at its terminal. Its field can be regulated through the use of the strength of the current applied also direction field
How to Make Electromagnet
- Here some steps involved to make the electromagnet and the components used are discussed here
- Iron Nail
- Electrical Tape
- Wire Stripper
- First of all wrap the wire across the iron nail and left some extra wire.
- When you finished the nail wiring on the complete nail cut wire.
- After that use a wire stripper and remove the wire insulation at both ends of the wire
- After that connect one terminal of wire to the positive point of the battery and the negative to another point of the wire
- After that place, any conductor to a nail that will be attracted by the nail that shows it working as an electromagnet magnet
Magnetic Field Increment through use of Ferromagnetic Core
- Ferromagnetic materials that have features to get easy magnetization and are created through cobalt, steel, nickel and soft iron
- This material has a strong attraction for agents. If these materials are involved in magnetic circuits will make high strength and dens field
- The field generated by the moving charges has affected the direction of the field created by the adjacent moving charges that make magnetic domains
- Magnetic domains are points where electrons have aligned fields. Magnetic domains area in the magnetic substances that has magnetization in a uniform state. It causes the effect of ferromagnetic substances.
Moving Magnet and Stationary Coil
- Faraday law states that varying magnetic field induces emf in the loop of wire
- The electromagnetic forces help electrons to move and produce current. Varying the area of the loop of the wire and the angle between the loop and field can produce the current. As a result flux produces. Magnetic flux is a measurement of the net magnetic field which passes through a wire loop and in result flux changes generate emf
- Let’s suppose that we have a magnet and static wire and move the magnet in and out of the wire then magnetic flux is generated in the wire due to the current flow in the wire. If we move with speed then larger current produces and the opposite of this process can also price emf mean if the magnet is static and wire is moving
- Static wire and magnet not generated emf.
Electromagnetic Coil Applications
- Electromagnetic components are very commonly used in medical devices such as MRI machines, ECG, X-RAYetc
- Electromagnetic coils are used for military uses such as protection from allied signals, jamming enemy signals, and other purposes
- Aviation instruments also used electromagnetic coils for different purposes
That is all about the ELECTROMAGNETIC COILS WORK all details has explained if you have any queries ask below comments.