Friday, 5 October 2012

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General Description On Magnetic Coils


By Juliette Cruz


A coil is basically made by winding a wire around an iron core a number of turns. When electricity is passed through the conductor, magnetic fields are generated. The fields are used in a number of electrical circuits in order to achieve a certain objective. Magnetic coils are therefore essential and have been applied in a number of areas.

When electrical energy flows through a conductor, magnetic field is created. In a single conductor, the field is relatively weak although several wires concentrate them together resulting to a more powerful magnet. A number of electrical equipments are fitted with these turns in order to aid their operations.

The study of how the magnetic fields can be used to simplify the life of mankind is still ongoing. The fields generated also travel through air but they move fast in steel or iron. The study of human brain have been made possible by these conductors. Another application is that of neurological therapy where pain is alleviated during operations.

A changing field around a conductor results to electrical current in the wire. The current direction is determined by the motion of the conductor as well as that of the induced magnetism. Stronger magnets generate large amounts of current. Moreover, the number of turns also affects the magnitude of the current. That is the more the wraps the higher the energy and vice versa.

The current generated can either be direct or alternating. Direct current flows in only one direction while the alternating one moves back and forth through the conductor. These coils have been fitted in various gadgets and they have turned out to be beneficial to human beings. Since most electrical circuits occupy a small space, the coils are either circular or elliptical.

The application has helped to alleviate pain to patients during operations by stimulating the neural tissue of the brain. It also helps them to have a smooth peripheral circulation in their body systems. Electronic systems are ensured to have a consistent current flow as the application helps the gadgets to induct electrical energy.

Several applications have been realized by professionals not only in electronics but also in other areas. Speakers operate with the help of these conductors since current is induced to the core by a similar technique. The attraction force generated allows electromagnets to be employed in several devices including electric bells, accelerators and motor generators.

The connection of these conductors have enabled electromagnets be used to aid in the propulsion of air crafts. The force of attraction generated enables them to discharge the energy used in revolving propellers and it therefore plays a role in air movements. The applications of this technique have been beneficial to mankind for along period.

For a field to be created and current to flow through a conductor, magnetic coils have to be used. They have been employed in several applications and have helped human beings in a number of ways. The materials used vary depending on the field where they are applied.




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