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Investigations of the auroral luminosity distribution and the dynamics
Investigations of the auroral luminosity distribution and the dynamics

TGD AND EEG
TGD AND EEG

... 3.4 Models for ionic superconductivity and topological condensation at the magnetic flux quanta of endogenous magnetic field . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198 3.4.1 Model for ionic superconductivity based on Cooper pairs . . . . . . . . . . . . 198 3.4.2 Super conductors of ...
EHC 238 - World Health Organization
EHC 238 - World Health Organization

Electric field, Magnetic field and Magnetization: THz time
Electric field, Magnetic field and Magnetization: THz time

Appendix Part 1 - Free
Appendix Part 1 - Free

Structure and Dynamics of the Magnetopause and Its Boundary Layers Hiroshi Hasegawa
Structure and Dynamics of the Magnetopause and Its Boundary Layers Hiroshi Hasegawa

... is the vital region in the flow of mass and energy into or out of the magnetosphere; all magnetospheric structures and phenomena are directly or indirectly influenced by magnetopause processes. Because of its importance in the interaction between the interstellar, stellar, or planetary wind and the ...
The relationship between field-aligned currents and the auroral
The relationship between field-aligned currents and the auroral

AC loss in superconducting tapes and cables
AC loss in superconducting tapes and cables

Magnetic and structural properties of isolated and assembled clusters
Magnetic and structural properties of isolated and assembled clusters

Electromagnetic Theory Objective Type Questions
Electromagnetic Theory Objective Type Questions

Magnetic Barkhausen Noise Measurements Using Tetrapole Probe Designs Paul McNairnay
Magnetic Barkhausen Noise Measurements Using Tetrapole Probe Designs Paul McNairnay

... A magnetic Barkhausen noise (MBN) testing system was developed for Defence Research and Development Canada (DRDC) to perform MBN measurements on the Royal Canadian Navy’s Victoria class submarine hulls that can be correlated with material properties, including residual stress. The DRDC system was ba ...
Electromagnetic toroidal excitations in matter and free space
Electromagnetic toroidal excitations in matter and free space

Untitled
Untitled

Experimental research on magnetic pulse welding of dissimilar
Experimental research on magnetic pulse welding of dissimilar

Normandeau Associates et al. 2011
Normandeau Associates et al. 2011

... Appendix B Undersea Cable Projects and AC and DC Magnetic Field Modeling ..............B-1 Appendix C Biological Information .....................................................................................C-1 ...
Introductory Physics II - Duke Physics
Introductory Physics II - Duke Physics

Introductory Physics II - Duke Physics
Introductory Physics II - Duke Physics

Magnetic Field of a Circular Coil Lab 12
Magnetic Field of a Circular Coil Lab 12

... The voltage and emf induced in the search coil by the field coil is described by a parameter called the “mutual” inductance (M). M depends on the shape and number of turns of the two coils, their separation, and their relative orientation. If iF is the current in the field coil, the voltage induced in ...
- LSE Theses Online
- LSE Theses Online

Motor de Faraday - IFGW
Motor de Faraday - IFGW

Proof Copy ([1/4E] in the process of updating)
Proof Copy ([1/4E] in the process of updating)

... even the strongest athlete would not be able to lift it. Its "heaviness" results from the fact that the magnetic field it produces would attract the cube in the direction of Earth's centre, thus the force of the magnetic attraction created would add to its real weight. The cube would also oppose our ...
The Role of Magnetic Helicity in the Structure and Heating of the
The Role of Magnetic Helicity in the Structure and Heating of the

Electromagnetism extra study questions
Electromagnetism extra study questions

... 23. In a Millikan type experiment, two horizontal plates are 2.5 cm apart. A latex sphere of mass 1.5 × 10–15 kg remains stationary when the potential difference between the plates is 460 V, with the upper plate positive. (a) Is the sphere charged negatively or positively? (b) What is the magnitude ...
Nanocrystalline Fe-Pt alloys: phase transformations
Nanocrystalline Fe-Pt alloys: phase transformations

Magnetization reversal in magnetic films
Magnetization reversal in magnetic films

... also been grown epitaxially with (1010) crystallographic orientation. Hereby, it has been necessary to modify the epitaxial growth sequence and incorporate an individualized template for each magnetic alloy concentration, in order to fabricate alloy films of comparable crystal quality. For the so-pr ...
1 2 3 4 5 ... 228 >

Magnetic field



A magnetic field is the magnetic effect of electric currents and magnetic materials. The magnetic field at any given point is specified by both a direction and a magnitude (or strength); as such it is a vector field. The term is used for two distinct but closely related fields denoted by the symbols B and H, where H is measured in units of amperes per meter (symbol: A·m−1 or A/m) in the SI. B is measured in teslas (symbol:T) and newtons per meter per ampere (symbol: N·m−1·A−1 or N/(m·A)) in the SI. B is most commonly defined in terms of the Lorentz force it exerts on moving electric charges.Magnetic fields can be produced by moving electric charges and the intrinsic magnetic moments of elementary particles associated with a fundamental quantum property, their spin. In special relativity, electric and magnetic fields are two interrelated aspects of a single object, called the electromagnetic tensor; the split of this tensor into electric and magnetic fields depends on the relative velocity of the observer and charge. In quantum physics, the electromagnetic field is quantized and electromagnetic interactions result from the exchange of photons.In everyday life, magnetic fields are most often encountered as a force created by permanent magnets, which pull on ferromagnetic materials such as iron, cobalt, or nickel, and attract or repel other magnets. Magnetic fields are widely used throughout modern technology, particularly in electrical engineering and electromechanics. The Earth produces its own magnetic field, which is important in navigation, and it shields the Earth's atmosphere from solar wind. Rotating magnetic fields are used in both electric motors and generators. Magnetic forces give information about the charge carriers in a material through the Hall effect. The interaction of magnetic fields in electric devices such as transformers is studied in the discipline of magnetic circuits.
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