Magnetic field Essays

  • Magnetic Field Variation Experiment

    844 Words  | 4 Pages

    Sensitivity to the Magnetic Field variation Experiment:- These first experimental tests cover and explain the influence of the magnetic field flux density, which generated by the permanent Halbach magnet through its applied and removed gradually during the magnetization and demagnetization periods, respectively, within the regenerator and acts on the performance of the AMR. Whereby, the magnetic field that generate by NdFeB Hallbach magnet strays at its central bore, be proportioned to the distance

  • The Importance Of Earth's Magnetic Field

    905 Words  | 4 Pages

    Earth's magnetic field, is moreover known as the geomagnetic field, this magnetic field that extends from the Earth's interior out into space, where it meets the solar wind, a stream of charged particles emanating from the Sun. Its magnitude at the Earth's surface ranges from 25 to 65 microteslas. Roughly speaking it is the field of a magnetic dipole currently tilted at an angle of about 11 degrees with respect to Earth's rotational axis, as if there were a bar magnet placed at that angle at the

  • Reaction Paper On Electric Motors

    1070 Words  | 5 Pages

    negative terminal of the battery, through the circuit, and to the positive terminal of the battery Current in a closed loop also creates its own magnetic field, which you can determine by the “Right Hand Rule.” Making a “thumbs up” sign with your right hand, the thumb points in the direction of the current, and the curve of the fingers show which way the magnetic field is oriented An electric motor uses the attracting and repelling properties of magnets to create motion. An electric motor contains two magnets;

  • Environmental Magneticism: Environmental Magnetism And Geomagnetism

    1329 Words  | 6 Pages

    which, we identify the different types of magnetic materials, calculate intensity, analyze and conclude the existence of our significant findings in correlation to any other results derived from various data analysis of earth system science. Magnetic minerals can be produced, modified, transported and deposited by a range of environmental and anthropogenic processes (Thompson et al., 1980; Thompson and Oldfield, 1986; chapter 12). In some situations these magnetic minerals provide very stable assemblages

  • Magnets Lab Report

    878 Words  | 4 Pages

    no. 3-3 ANALYSIS In PART 1 of the experiment which the is Magnetic Field of Permanent Magnets, we used two different magnets; two bar magnets and two U- magnets in order to see clearly what would be the result when magnets are placed in different orientations. For PART 1A, the bar magnets were oriented with like poles (N-N) facing each other. As a result after putting and scattering iron filings, each field line of the magnetic field from the north pole of the two magnets went away from each other

  • Ferroelectricity Lab Report

    1200 Words  | 5 Pages

    The main feature of ferroelectricity is the polarization reversal (switching) with electric field. This can be observed by measuring the polarization vs electric field hysteresis loop (P-E hysteresis loop). This is usually done by using Sawyer-Tower circuit [17] as shown in Figure 2.10. An alternating voltage V is applied across the electrodes on the ferroelectric material and a capacitor Co with high value of capacitance is connected in series with the test sample (C_x) and then studying the relationship

  • Electromagnetic Field Theory

    838 Words  | 4 Pages

    Domain Electromagnetic field theory is a theory that explains the relationship between an electric field and a magnetic field, causing the electromagnetic wave propagation[44]. This theory was proposed by James Clark Maxwell in 1865. According to Maxwell, the electric field that changes will give rise to a magnetic field. Meanwhile, Faraday argued that the change in the magnetic field induce an electric field. Thus, the relationship between an electric field and a magnetic field causes an electromagnetic

  • Dc Motor Research Paper

    1129 Words  | 5 Pages

    mechanical energy to produce electrical energy. It relies basely on the fact that like magnet poles repels and unlike magnetic poles attracts each other. A coil of wire with a current running through it, and induces magnetic field generates aligned with the center of the coil. Theory of a DC motor When the current flow through a circuit with electrons, it induces a magnetic field around it. Thus this will results in a movement called the motoring actions. Fleming’s Left hand Rule tells us that

  • Active Magnetic Bearings Case Study

    2777 Words  | 12 Pages

    1. INTRODUCTION Active Magnetic Bearings (AMBs) have many advantages over conventional bearings. Their uncommon features and the appeal towards high speed machines make them attractive for certain common rotor/bearing applications. Thus, AMBs have been researched significantly for a few years, and several advance improvements in performance have been achieved. In magnetic bearing system, the rotor is magnetically suspended. The magnetic bearing system has the advantage that it does not need any

  • Elecctics: Maxwell's Equations

    1728 Words  | 7 Pages

    The set of four complicated equation that describe the word of electromagnetics are known as Maxwell's Equations. These equations describe how electric and magnetic fields propagate, interact, and how they are influenced by objects. The energy that travels and spreads out as it goes is defined as a Radiation. (ALAN Isaacs ) In general, wave are means of transporting energy or information, wave represents as a function of both space and time.( Matthew.N.O .Sadiku) The light energy is an only

  • Superconductor Lab Report

    1033 Words  | 5 Pages

    Raychaudhury Tata Institute of Fundamental Research Date: 10/03/2017 Author: Meenakshi MS14077 I. BACKGROUND AND SUMMARY OF TALK In a type-II superconductor,magnetic flux lines interacts among themselves to form a periodic structure called ”vortex lattice”. This occurs above a certain critical field strength. The vortex density increases with increasing field strength.This system has long been used as a versatile model system to study the interplay between interaction and random pinning.The pinning is very

  • Essay On Magnetic Moment

    1056 Words  | 5 Pages

    The magnetic property of a material is due to the existence of a magnetic moment (µ) in the material even in the absence of an applied magnetic field and from induction of magnetic moment in response to an applied magnetic field. Classically, a magnetic moment is equivalent to a current loop and it is a fundamental quantity defining the magnetic property. The magnetic moments of the nucleons are three orders of magnitude smaller than that of the electrons. The electronic magnetic moment

  • Characteristics Of An Antenna

    824 Words  | 4 Pages

    In electronics, an antenna is an electrical apparatus that will modify electric power to radio waves or vice versa. It is often being use as a transmitter and receiver. Antenna transmitter will send an alternating current that is in radio frequency to radiate the electromagnetic energy to electromagnetic waves. Antenna receiver will receive the power of an electromagnetic wave to produce a tiny voltage at the terminal to be amplified. The shape and size of the antenna’s structure will decide how

  • Main Imponents Of An Electric Motor

    1493 Words  | 6 Pages

    electric motors have numerous applications including in homes, commercial buildings, and manufacturing industries. An electric motor works on the principle of Ampere’s law which states when a wire is carrying an electric current, it generates magnetic field around itself. In other words, an electric motor is able to generate motion by use of magnets and therefore its whole operation is about magnets & magnetism. Electric motors have been in use since 1800s and their efficiencies have been constantly

  • Hysteresis Curve Analysis

    1873 Words  | 8 Pages

    many other natural phenomena. What is hysteresis curve? A hysteresis curve is a chart-form for hysteresis. In magnetic hysteresis, magnetizing doesn’t happen immediately nor does demagnetizing, there always is a gradual lag both ways. Technically, the hysteresis curve shows a relationship between the induced flux density and magnetizing force. The loop is generated by measuring the magnetic flux of a ferromagnetic material while the magnetizing force is changed. A ferromagnetic material that has

  • Similarities Between Electricity, Magnetism And Electromagnetism

    898 Words  | 4 Pages

    Electricity, magnetism, and electromagnetism are different but are all related. These topics are very similar in a wide variety of ways and are very fascinating. Each of theses natural phenomenons are field forces and the way protons, neutrons, electrons, and atoms react in these field are similar. The properties of these phenomena have been harnessed by humans to have practical uses in modern society. Electricity is a type of energy that come from charged particles that occur in two forms static

  • Paramagnetism Research Paper

    2312 Words  | 10 Pages

    A magnet is a material or object that produces a magnetic field. It is a force that pulls on other ferromagnetic materials, such as iron, and attracts or repels other magnets. A permanent magnet is an object made from a material that is magnetized and creates its own persistent magnetic field. Materials that can be magnetized, which are also the ones that are strongly attracted to a magnet, are called ferromagnetic (or ferrimagnetic). These include iron, nickel, cobalt, some alloys of rare earth

  • Skin Effect Research Paper

    1459 Words  | 6 Pages

    current are charge carriers which are electrons driven by an electrical field as a result of the electrical energy source. This AC in the conductor induces an alternating magnetic field around and in the conductor, and the magnetic field changes as the AC intensity in the conductor changes. This change in the magnetic field also induces an electric field which in turn opposes the change in current intensity. The opposing electric field is called back electromotive force and this is very intense at the

  • Bldc Motor Conclusion

    1359 Words  | 6 Pages

    CHAPTER 1 INTRODUCTION 1.1 OVERVIEW BLDC motor is one of the types of synchronous motors. It means at the same frequency magnetic fields generated by both stator and rotor rotates. BLDC motors don’t experience the “slip” that is normally seen in induction motors. BLDC motors have single-phase, 2-phase and 3-phase configurations. The stator has the same number of windings in all it’s types. Out of these, the 3-phase motors are the most popular and widely used. Brushless Direct Current (BLDC) motors

  • Essay On Electromagnetism

    1345 Words  | 6 Pages

    understand the basic foundation of electromagnetism. The field of electromagnetism was only six years old when Henry began teaching at the Albany Academy in New York. Danish scientist Hans Christian Oersted had discovered in 1820 that an electrical current in a wire from a battery caused a nearby compass needle to deflect. The theory has been expanding from that