Magnetic field lines

Part 2 book "Engineering electromagnetics" includes content: Magnetic forces, materials, and inductance; time varying fields and Maxwell’s equations; transmission lines; the uniform plane wave; plane wave reflection and dispersion; guided waves; electromagnetic radiation and antennas.

367p muasambanhan06 03-02-2024 2 2   Download

The presence of Balmer emission lines is an indicator of magnetic activity in stars. This paper presents the spectroscopic observations at blue wavelengths of nearby young brown dwarfs with previously detected lithium.

6p vimichaelfaraday 28-12-2023 5 3   Download

An anti-serial fluxgate sensor configuration is proposed in this report. The design comprises two identical bilayer-rod fluxgate sensors connected anti-serially in a straight line. Each bilayer-rod sensor is constructed of an excitation coil and a pick-up coil wrapped around a core.

12p viberkshire 09-08-2023 4 4   Download

Lecture General Physics 2 - Chapter 19: Magnetism. After studying this section will help you understand: magnets, types of magnetic materials, sources of magnetic fields, magnetic field lines, sketch, bar magnet, Earth’s magnetic field,...

60p diepchilang 26-08-2021 6 1   Download

Lecture Physics A2: Magnetic fields - PhD. Pham Tan Thi present the content analysis model particle in a magnetic field, magnetic field lines, magnetic force, an electron moving in a magnetic field, representations of magnetic field lines perpendicular to the page,...

58p xusong 21-07-2021 12 1   Download

Here various types of biosensors such as physicochemical, bioluminescent, electrochemical, opto-electric, piezoelectric, thermometric and magnetic has been deliberated to show their usefulness and applications in multiple field. Food industry requires suitable analytical methods for the safety and quality checking of foods. Chemical and biological hazards detection in foods is important to the human health.

17p caygaocaolon6 30-07-2020 17 1   Download

The following will be discussed in this chapter: Electric and magnetic field coupling; EM radiations; period, frequency, and wavelength; phase lag and phase lead; antennas why??? antenna analogy; why separate TX and RX antennas transmission are required; transmission line as an antenna; working of an antenna; far and near fields; antennas characteristics.

44p nanhankhuoctai8 23-06-2020 28 0   Download

It has been demonstrated that relatively small variations of the parameters of exposure to extremely low frequency magnetic fields (ELF-MF) can change significantly the outcome of experiments.

10p viputrajaya2711 22-06-2020 6 0   Download

Influence of substitution of 3d metals for Mn on properties of La0.67Ca0.33Mn0.9 TM0.1O3 (TM = Fe, Co, Ni) compounds was studied. Ferromagnetic – paramagnetic and metals – insulator transitions were significantly affected by Mn-site substitution. However, no observable difference was found in their crystal structure from X-ray diffraction analysis. At room temperature the structure characterization of these compounds gave the single phase and structure is the distortion orthorhombic cell with space group symmetry Pnma.

12p 12120609 01-06-2020 12 1   Download

There is an idea to use this accelerator for scientific research as well. For this purpose, a new beam line should be designed. A high energy resolution with minimum momentum spread is a key point for designing. A preliminary design of the beam line using matrix codes, modeling 3D optical elements, magnetic field calculations, and beam dynamics analysis is presented in this paper.

8p capheny 28-02-2020 11 0   Download

Magneto-optical absorption coefficient (MOAC) in infinite square quantum well (SQW) is investigated by time-dependent perturbation method. The dependence of MOAC on the photon energy is calculated and graphically plotted. From the graphs showing this dependence, we obtained the spectral line width (the full-width at half maximum - FWHM) of the cyclotron-phonon resonance peaks using Profile method.

10p thuongdanguyetan19 05-02-2020 17 1   Download

Fast solar wind has been recognized, about 40 years ago, to originate in polar coronal holes (CHs), that, since then, have been identified with sources of recurrent high speed wind streams. As of today, however, there is no general consensus about whether there are, within CHs, preferential locations where the solar wind is accelerated. Knowledge of slow wind sources is far from complete as well. Slow wind observed in situ can be traced back to its solar source by backward extrapolation of magnetic fields whose field lines are streamlines of the outflowing plasma.

6p kethamoi1 17-11-2019 20 0   Download

This paper present a twodimensional problem of electromagnetic scattering from line source located outside of a metallic elliptical cylinder coved by isorefractive (right-handed material) and anti-isorefractive dielectric (left-handed material) . Analytical solutions of electric and magnetic fields as functions of line source position and layer thickness are discussed in frequency domain.

5p visasuke2711 25-04-2019 20 0   Download

The earth's magnetic field has two magnetic poles. These magnetic poles are the magnetic South Pole and North Pole. The earth's magnetic poles are located at approximately 12° offset from the earth's geographical poles. At the magnetic North Pole, the gridlines of the magnetic field are vertical to the earth's surface. The needle of a compass, for example, will point to this magnetic pole. At the magnetic South Pole, the magnetic lines leave the earth’s surface. The earth’s magnetic field does not run parallel to the earth’s surface.

16p nhacnenzingme 23-03-2013 35 5   Download

Abstract The year 2008 marked the one hundredth anniversary of the observational discovery by George Ellery Hale of magnetic field in sunspots (Hale in Astrophys. J. 28:315–343, 1908). This observation, the first to suggest a direct link between the best-known variable features on the Sun and magnetism, started a line of research that has widened considerably over the last 100 years and is continuing today. Knowledge about all aspects of the Sun has increased in a remarkable way over the past few decades....

0p tom_123 14-11-2012 48 3   Download

This book is concerned with Ultra-Low-Frequency (ULF)-electromagnetic waves observed on the Earth and in Space. These are so-called geomagnetic variations or pulsations. Alfv´en’s discovery related to the influence of the strong magnetic field on the conducting fluids (magnetohydrodynamics) led to development of the concept that the ULF-waves are magnetospheric magnetohydrodynamic (MHD)-waves. MHD-waves at their propagation gather information about the magnetosphere, ionosphere, and the ground. There are two applied aspects based on using the ULF electromagnetic oscillations.

445p tom_123 14-11-2012 83 9   Download

This book consists of a selection of original papers of the leading scientists in the fields of Space and Planetary Physics, Solar and Space Plasma Physics with important contributions to the theory, modeling and experimental techniques of the solar wind exploration.

0p qsczaxewd 22-09-2012 65 8   Download

Magnets are pieces of metal that have the ability to attract other metals. Every magnet has two poles: a north and a south. Much like electrical charges, two similar magnetic poles repel each other; while opposite magnetic poles attract each other. Magnets have a continuous force around them that is known as a magnetic field. This field enables them to attract other metals. Figure 1 illustrates this force using bar and horseshoe magnets.

113p jakkyjery 04-10-2011 100 30   Download

What is a line follower? Line follower is a machine that can follow a path. The path can be visible like a black line on a white surface (or vice-versa) or it can be invisible like a magnetic field. Why build a line follower? Sensing a line and maneuvering the robot to stay on course, while constantly correcting wrong moves using feedback mechanism forms a simple yet effective closed loop system.

17p tunghangul 22-09-2010 138 22   Download

In this contribution several topics concerning magnetic fields and overhead medium voltage power lines are reviewed: simple formulation to assess the magnetic field (MF) level; characterization of magnetic fields generated by typical three-phase and one-phase primary distribution lines, with balanced and unbalanced current; and main mitigation techniques, analysed in relation with typical reduction level obtained. Additional data concerning cost and performance of different solutions are also provided....

31p powersystem 06-07-2010 123 8   Download