Electric field

The History of the Development of the Four Fundamental Forces Nature has a total of four fundamental forces. The forces include gravitational, electromagnetic, strong nuclear and weak nuclear force. Gravitational force is the force of attraction between all masses. Every object in this universe is pulling upon other objects. Many scientists came up with logics to explain the science behind gravitational forces. The first one to try was Aristotle in around 330 BC. Aristotle believed Earth and…

Field strength or intensity is the force which maintains the magnetic flux and produces a particular value of the flux density B at that point in a magnetic field. Therefore the flux density is the cause while the flux density (B) is the effect. The flux density can be assumed proportionally to the field intensity in a magnetic field which comes in three parts. First part is: Where U stands for the permeability of force (the measure of the degree to which the magnetic line of force can…

works. Michael Faraday was born in London on September 22, 1791. He was the first person to produce an electric current from a magnetic field, He discovered diamagnetism and explained why some substances react opposite to a magnetic force when they encounter a magnetic field. He also discovered the effect of magnetism on light and he invented the electric generator and the electric motor.…

expressed in the form of conservation laws of mass, momentum and energy.The magnetohydrodynamic phenomena are a consequence of the mutual interaction of the fluid flow and the magnetic field. As is well known, a conductor crossing magnetic field lines gives rise to an induced electric field, which causes an electric current in the conducting fluid. The following are the Maxwell,s equations ∇⋅D = ρcf ∇⋅B = 0 ∇×E = −∂B ∂t ∇×H = J f + ∂D…

efficiency of this transformer is largely dependable on the construction of its core. The iron from which the core is made has to be of a high permeability (amount of magnetization within the iron when immersed into a magnetic field) and a low retentivity (portion of residual magnetic field upon the removal of the magnetizing force). For the purpose of minimizing the energy losses, it is prefferable to use the straight core. The logic…

The main actors in the movie are Tom Hanks portraying Forrest Gump, Robin Wright portraying Jenny Curran, and Sally Field as Ms. Gump. The actors did a good job of acting like southerners in the movie, and they didn’t play out of character; However, there are a few goofs in the movie. As Forrest in the scene where he takes apart his gun and reassembles it, Hanks forgets to use his accent for a few seconds. There are also more mistakes in the movie that no one has seemed to notice. If someone was…

Magnetic resonance imaging, also known as an MRI scan, is a type of scan that uses magnetic fields and radio wave energy to create images of the organs and tissues, such as the brain. It is a scan that is used to detect things such as tumors, infections and injuries. It is often used after an x-ray or CT scan is done to gather more information. This paper will discuss MRI in depth such as how an MRI works, its use in society, the differences between MRI and other scans and the future for MRI.…

In this memoir of First They Killed My Father by Loung Ung, the narrator faces many difficulties throughout her childhood and and because this is written by Loung as an adult it is very interesting to see her perception of herself at the age of five. This memoir talks about the tragedies that took place during the Khmer Rouge that was led by Pol Pot. Khmer Rouge tore families apart, killed innocent children and left many to die due to famine. Between 1975 and 1978, there was an estimated number…

Imagine you’re world being turned around from living peacefully and happy to murdering people that you don’t want just to stay alive. This is what people had to go through in Cambodia when Khmer Rouge, a radical Communist regime, came to power in 1975. They started to move people in the countryside and made everyone work, even childrens. Millions of people died by starvation and sickness. In Never Fall Down by Patricia McCormick, people’s physiological states changes three ways, person's…

The soft, green grass was sprinkled with shards of mirrored glass; the mirror had been through so much pressure after going through the force field three times. Kate could hear it shatter into a billion pieces when Mr. Jacks and his bulldog passed through the force field. Mr. Jacks looked relieved as if he were a bird let free and his bulldog just looked straight up tired. Kate started to feel her head pound because the adrenaline shooting through her body started to fizzle out and she hadn’t…