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Inner Magnetospheric Modeling with the Rice Convection Model
Inner Magnetospheric Modeling with the Rice Convection Model

... Approach to Calculating InnerMagnetospheric Electric Field • The change in magnetic field configuration due to a northward or southward turning has a large effect on the inner magnetospheric electric field. – Hilmer-Voigt or Tsyganenko magnetic field models can’t give a good picture of the time resp ...
Angle Dependence of the Orbital Magnetoresistance in Bismuth
Angle Dependence of the Orbital Magnetoresistance in Bismuth

Global convection electric field and current : Comparisons
Global convection electric field and current : Comparisons

The demagnetizing field of a non
The demagnetizing field of a non

Electrostatic Forces and Electric Fields
Electrostatic Forces and Electric Fields

electromagnetic induction
electromagnetic induction

Ditellurides of 3d transition metals studied by 57Fe and 125Te
Ditellurides of 3d transition metals studied by 57Fe and 125Te

37.3 Generators and Alternating Current 37 Electromagnetic Induction
37.3 Generators and Alternating Current 37 Electromagnetic Induction

Phase-field simulation of electric-field-induced in
Phase-field simulation of electric-field-induced in

... deviation resulting from symmetry breaking (e.g., from cubic to tetragonal) usually occurs under very large residual strains (typically with a magnitude higher than 1%).40 The latter is more common in ultrathin magnetic films, which rule out the possibility of strain relaxation via, say, the interfa ...
Chapter 1
Chapter 1

The Solar Atmosphere
The Solar Atmosphere

... If one further assumes that opacities are in LTE the radiation from the photosphere can be modeled2 . After binning the opacities at all wavelengths in groups the group mean opacities are used in calculating a group mean source function from which the emergent intensity, and thus the radiative losse ...
First year - physics teacher
First year - physics teacher

... The essence of science education is learning by doing. So practicals are inevitable in science learning. Through practical, it is aimed to develop various experimental skills such as preparation for the work, specificity and accuracy in carrying out the experiment, controlling variables, measurement ...
HS-SCI-CP -- Chapter 19- Magnetism
HS-SCI-CP -- Chapter 19- Magnetism

... induced by other means as well. For example, if a piece of unmagnetized iron is placed near a strong permanent magnet, the piece of iron will eventually become magnetized. The process can be reversed either by heating and cooling the iron or by hammering the iron, because these actions cause the mag ...
Scientific Facts on Electromagnetic fields from Power lines, Wiring
Scientific Facts on Electromagnetic fields from Power lines, Wiring

Evolution of a vortex in a magnetic field
Evolution of a vortex in a magnetic field

... direction of an applied magnetic field has been established from several experiments (Votsish and Kolesnikov [1] and Alemany et al. [2]). The experiments led to the conclusion that correlations are stronger in the direction parallel to the external field. When a magnetic field acts on a three-dimens ...
Discussion Question 3A
Discussion Question 3A

superconductive magnetic storage [AF/Hilal proposal] - tii
superconductive magnetic storage [AF/Hilal proposal] - tii

... The use of dump resistor is more appropriate for low current density conductor and will be first analyzed. Advanced protection schemes will be considered in more details. A scheme which is proposed to consider during the course of this study is the use of a conductor doublet where the coil is wound ...
Sensitive dependence of hydrogen Balmer-alpha
Sensitive dependence of hydrogen Balmer-alpha

Maxwell`s displacement current revisited
Maxwell`s displacement current revisited

1302lab6 - UMN Physics home
1302lab6 - UMN Physics home

Name Completed on A compilation by
Name Completed on A compilation by

Knapp Magnetism Notes
Knapp Magnetism Notes



Slide 1
Slide 1

(a) Figure 1 shows two coils, P and Q, linked by an iron bar
(a) Figure 1 shows two coils, P and Q, linked by an iron bar

... and the second is subject to magnetic flux changes produced by current changes in the electromagnet. Relatively few students stated in part (i) that the centre-zero meter would deflect and then return to zero when the current in coil P was switched on. There were frequent references to current flowi ...
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Electromagnet



An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. The magnetic field disappears when the current is turned off. Electromagnets usually consist of a large number of closely spaced turns of wire that create the magnetic field. The wire turns are often wound around a magnetic core made from a ferromagnetic or ferrimagnetic material such as iron; the magnetic core concentrates the magnetic flux and makes a more powerful magnet.The main advantage of an electromagnet over a permanent magnet is that the magnetic field can be quickly changed by controlling the amount of electric current in the winding. However, unlike a permanent magnet that needs no power, an electromagnet requires a continuous supply of current to maintain the magnetic field.Electromagnets are widely used as components of other electrical devices, such as motors, generators, relays, loudspeakers, hard disks, MRI machines, scientific instruments, and magnetic separation equipment. Electromagnets are also employed in industry for picking up and moving heavy iron objects such as scrap iron and steel.
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