# Magnetic field

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• ## The Four Fundamental Forces

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…

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• ## My Observation Of A Magnet

They’ll use a nail and a battery to create a magnetic field. It’ll turn the nail into a magnet. Students should be sure to write down their observations throughout the experiment. Students will wrap the center portion of the wire around the nail 10 times so that it forms a coil. They should have extra…

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• ## Instructional Decision Making

completing the compass experiment and receiving successful results, we moved on to our last experiment of the unit. This experiment was called “Through it All.” During this experiment, students worked in small groups to test the strength of the magnetic force field through a variety of objects. Before breaking off into groups and performing the tests of each item, students were required to make a prediction about whether or not they thought a magnet could attract an object through each item…

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• ## Polarization In Antenna

waves in the space for the communication purposes. These two types of waves as depicted by the name Electro-Magnetic is a combination of electrical and magnetics fields. These two waves are mutually orthogonal i.e. oriented at an angle of 90o with each other. The general wave form is given as Fig: Electromagnetic Waves At the receiving side there is a problem that if we receive the magnetic wave also then there is an interference of the two waves and the message can be distorted and there is…

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• ## Maxwell's Characteristics: The Basic Laws Of Hydrodynamics

hydrodynamics of a fluid is 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 …

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• ## AC Conductivity, Dieedric Loss, And Dielectric Constant

samples were also calculated which is known as squareness ratio. The materials having high value of coercivity show the hard magnetic materials and this behavior was observed in M-type hexa ferrites [36]. The measured values of coercivity ‘Hc’ for all the samples were observed in the range of (1.38-2.06) KOe. All the samples have high value of coercivity showing the hard magnetic behavior of M-type hexa…

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• ## Cartesian Hydrodynamics

processes 5225FiTransport properties I. INTRODUCTION There has been significant recent work on Vlasov-Maxwell (VM) equilibria that are consistent with nonlinear force-free1–8 and “nearly force-free”9 magnetic fields in Cartesian geometry. Therein, force-free refers to a magnetic field for which the associated current density is exactly parallel, which is the definition we shall also use ∇×B=μ0j, j×B=0.These works consider one-dimensional (1D) collisionless current sheets, with Refs.…

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• ## Temporary Magnet Essay

CHAPTER II. REVIEW OF THE RELATED LITERATURE A. Temporary Magnet Temporary magnets are those that essentially demonstration like permanent magnets when they are inside a strong magnetic field (Jezek, 2015). They are not like permanent magnets when it's not around in a magnetic field because it loses its own magnetism. Temporary magnets cannot remain magnetized on their own (Boyer 2017). Paperclips, press nails, and other comparative things are cases of temporary magnets. Temporary magnets are…

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• ## Temperature Effect On Magnetism

is when an object has a magnetic force, field, or a pull on another object.Temperature plays a large role in the strength of magnetism, and more importantly how a magnet reacts towards temperature. One can describe temperature as how hot or cold an object is. Temperature is ultimately how fast the molecules in an object are moving. The faster the molecules in an object are moving, the more heated the object becomes. Magnetism is when an object has a magnetic force, field, or a pull on another…

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• ## The Reflection Of Mechanical Power

Mechanical power is defined as torque and RPM (rotation per minute) and electric power is defined as current and voltage. Therefore, in order convert mechanical power into electric power, torque shall be converted into current and rpm shall be changed into voltage. The relation between the rpm and voltage can be defined with equations with the use of Equations. When there is a decrease in value in equations there is an increase in efficiency of power generator. In here, there is no loss when…

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