# Magnetic field

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A magnetic field is produced in the region around a wire whenever a current flow through that wire. Magnetic fields are vector fields, they have a direction and magnitude. The formula for the magnitude of the magnetic field from a wire is B=(µ_O I)/2πr. B is the magnetic field, µ_O is the permeability of free space (4πx〖10〗^(-7)Tm/A), I is the current, and r is the distance from the field sensor to the rod. In part 1A and 1B we constantly turn off the power source and ammeter after each run to eliminate

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purpose of this lab experiment was to study the magnetic field that surrounds a magnet and to see how the strength of the magnetic field change with distance from a magnet. The experiment was successful in achieving its purpose and in proving the theory of the experiments. In the experiment that we needed to show the magnetic field surrounding a magnet, we used a piece of paper, a magnet, and a compass to show the magnetic field. To view the magnetic field that is surrounding the magnet, we placed the

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Theory A magnetic field is an area in which there is an electrical charge where a magnetic force acts. A magnetic field can be induced in a circular loop and it can be calculated if the radius, current, and number of turns are all known. When in the form of a coil it is directed along the axis of the coil and is usually uniform throughout the coil until it begins to fall off when it gets further away from the center. Another characteristic of magnetic field is that it can be changed to induce a

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through it, is placed in a magnetic field a force is placed on the wire: this is the motor principle and this is the principle behind the loud speaker. Hello, My name is Michael Trevorrow and you will be learning about the loud speaker and electromagnetism. But first, if you want to understand the loud speaker you have to understand electromagnetism. Well electromagnetism is simply ‘the phenomenon of the interaction of electric currents or fields and magnetic fields’. This will become clearer

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Theory Scalar aeromagnetic data comprise both induced and remanent magnetic fields. Induced magnetism is caused by the earth’s magnetic field and is mainly the result of the magnetic susceptibility of the rock. Magnetic susceptibility is expressed as a unit-less proportionality constant denoted by an International System of Units (SI), which reflects the susceptibility of a rock to become magnetized in the presence of a magnetic field. This susceptibility is mainly a function of the rock’s magnetite

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.INTRODUCTION Magnetic levitation is the latest in transportation technology and has been the interest of many countries around the world. The idea has been around since 1904 when Robert Goddard, an American Rocket scientist, created a theory that trains could be lifted off the tracks by the use of electromagnetic rails. Many assumptions and ideas were brought about throughout the following years, but it was not until the 1970’s that Japan and Germany showed interest in

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Lab Report 5 Magnetic Fields Physics 262-003 Author: A. Coughran Lab Partners: E. Ortiz, H. Barham Date: 4/12/17 Lab Report 5 A. Coughran 4/12/17 Objective: The objective in Lab 5 is to measure and determine the strength and location of magnetic fields using a coil, solenoid, and magnets. The experimental values of the strength of the magnetic fields of the solenoid and the coil will be calculated and then compared to their respective theoretical values for accuracy. Theory:

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Magnetic field is the spaces in which kinetic and electrically charged particles are under influence of power and is formed following that electrons revolve around the nucleus and themselves. Magnetic field is a phenomenon which cannot be directly seen or easily felt, however its results can be seen and felt. Today, with the development of technology its measurement via devices has become possible. All substances are of magnetic fields, either living or non-living, weak or strong. Like every substance

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Magnet Drop Introduction Throughout this report the strength of an induced magnetic field will be explored, this will be achieved through dropping a rare earth magnet through an aluminum tube and testing whether the velocity of the magnet will move at a constant rate and whether the velocity of the magnet will continue to move at a constant rate once more and more weight is added to the magnet, and discovering why the magnet moves at a constant rate even when weight is added or whether the magnet

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Assignment. Task 3.1 a) The magnetic field of a permanent magnet causes the atoms to move around uniformly in the same direction. This may vary depending on the electrons of the atoms causing a variety of atoms to be able to do this and few which can hold a permanent magnetic field. It is an invisible field and it is also called a vector because of the forces specified direction and magnitude. The arrow displays the direction of the force and also how the forces are. The closer the lines are

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was difficult to measure the magnetic field of the earth quantitatively, due to there were no real standard to compare it against. Geologists in that era had difficulties on navigating from point A to point B [2]. As electromagnetic theory was industrialized through the 1800s, it was found that magnetic field strength could be given a definite value using coils which carries the current. In this EEi, the aim is to determine the measurement of the local magnetic field, comparing to a known value created

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Abstract Summary Magnets have a magnetic field surrounding them and these fields is the magnetism force that the magnet poses of an object. On a large scale, the Earth is a magnet which also has a magnetic field. Magnets also has North and South poles which can flip. The amount of magnetic material attracted to the magnet, allows the magnet’s poles to flip. Flipping on the earth’s magnet could cause destruction on the earth. The magnetic field protects earth from solar radiation. Purpose of the

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The Earth’s magnetic field The discovery of the Earth’s magnetic field Over 2000 years ago, the Chinese discovered that lodestone, a naturally magnetised iron ore, would align itself in a north-south direction. Hundreds of years later, they discovered that their “compasses” didn’t point true north and in fact that this position changed with time. The compass was first used for navigation in the 11th-12th century, only arriving in Europe towards the end of this period. Then, in 1600, William

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Grade Details There are 2 pages in this exam: Page:   1     2       1. Question: (TCO 4) A body moving with an acceleration having a constant non-zero magnitude must experience a change in:   Your Answer:          Speed              acceleration              velocity    CORRECT          weight       Instructor Explanation: Remediation: Knight, Chapter 1.6   Points Received: 6 of 6 2. Question: (TCO 4) A ball is dropped from a 250 foot building. How long before the ball hits the ground

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electric charge causing in an attraction and repulsion force between an object. A magnetic field can be created by an electronic solenoid and can be influenced by multiple variables. The number of coils on a solenoid will affect the strength of the magnetic field. Furthermore, the length of the solenoid will determine the strength of the magnetic field. As more current is passed through a solenoid the magnetic field will greaten. Current and voltage are propionate and as voltage increases, so will

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1.Question How strong is the magnetic field went the length of the coil on the electromagnet is shorter or longer? 2. Relevance The relevance of the lab is to teach people how electromagnets work. They are useful because they can be turned on and off. 3. Variables Independent variable: The length of the coil. Dependent variable: The amount of paper clips that were attacked. Control variable: The battery. 4. Hypothesis As my hypothesis, I predict that as the coils get smaller they won't pick up

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Evidence of Magnetic Field-Induced Coupled magnetoelectric Domains in Single Phase layered Multiferroic thin films Increasing demands for high data storage and sensing applications led the interest in the area of single phase multifunctional materials so-called ‘multiferroics’. Material with coupled ferroic order parameters such as between ferroelectric and ferromagnetic in‘mutiferroics’ provides an additional degree of freedom with ability to write through ferroelectric polarization and read the

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Since the advent of magnetic resonance imaging applications in the health field forty years ago the technology has become a staple in hospitals all around the world. Magnetic resonance imaging commonly known to one of the safest forms of attaining pictures of the human anatomy. Although magnetic resonance technology is popular amongst health care providers for decades, until recently, scientists could not get the optimum image of some critical parts of the human anatomy. The magnetic resonance technology

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physics of the electromagnetic field, a field that exerts a force on particles with the property of electric charge and is reciprocally affected by the presence and motion of such particles. A changing magnetic field produces an electric field (this is the phenomenon of electromagnetic induction, the basis of operation for electrical generators, induction motors, and transformers). Similarly, a changing electric field generates a magnetic field. The magnetic field is produced by the motion of electric

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of magnetic field therapy on functionality and pain in complex regional pain syndrome Purpose: According to recent studies, Type-1 Complex Regional Pain Syndrome (CRPS) is a disease occurring a trauma, causing clinical manifestations and resulting in physical disabilities. This study was planned to investigate the effects of Magnetic Field Therapy (MFT) on the functionality and pain in Type-1 CRPS. Methods: Sixty-four patients with Type-1 CRPS cases were included to the study. Magnetic Field Therapy

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