DC magnetic field generator with spatial coils arrangement
... field without an energy supply. The drawback is the lack of possibility to regulate and/or switch off the magnetic field. Another MFG construction is a magnetic core with an air gap and excitation windings or coils as sources of magnetomotive force (MMF). This solution enables full control of magnet ...
... field without an energy supply. The drawback is the lack of possibility to regulate and/or switch off the magnetic field. Another MFG construction is a magnetic core with an air gap and excitation windings or coils as sources of magnetomotive force (MMF). This solution enables full control of magnet ...
The birth of the electric machines: a commentary on Faraday (1832
... research: an electric current, a magnetic field and mechanical motion, and it is the interplay between these three that is the constant theme throughout his work. In September 1821, he built a device that can be regarded as the very first electric motor. He showed that a suspended wire hanging freel ...
... research: an electric current, a magnetic field and mechanical motion, and it is the interplay between these three that is the constant theme throughout his work. In September 1821, he built a device that can be regarded as the very first electric motor. He showed that a suspended wire hanging freel ...
magnetic energy acumulation in the coronal current sheet
... It was shown in [6-9] that the main condition for the large flare generation is the AR magnetic flux exceeding 1022 Mx. Neither the imbalance of the northern and southern fluxes, nor rate of the magnetic flux change are signs of the flare appearance. In [10] it is noted that a big flare occurs over ...
... It was shown in [6-9] that the main condition for the large flare generation is the AR magnetic flux exceeding 1022 Mx. Neither the imbalance of the northern and southern fluxes, nor rate of the magnetic flux change are signs of the flare appearance. In [10] it is noted that a big flare occurs over ...
DEVELOPMENT AND APPLICATIONS OF A DRUM
... Design of a Magnetic Circuit At present, various high-intensity magnetic separators, Jones high-intensity magnetic separators or induced-roll high-intensity magnetic separators use a closed magnetic circuit. In order to increase the magnetic field strength, the separation gap should be small. The ke ...
... Design of a Magnetic Circuit At present, various high-intensity magnetic separators, Jones high-intensity magnetic separators or induced-roll high-intensity magnetic separators use a closed magnetic circuit. In order to increase the magnetic field strength, the separation gap should be small. The ke ...
Toys Student activities 1-10
... Finding an object’s ‘balance point’ or ‘centre of gravity’, enables us to predict if it will fall over or balance. With a long thin object such as a ruler or broomstick, you can support it on both hands and gradually move your hands together. Where your hands meet the object should balance. This is ...
... Finding an object’s ‘balance point’ or ‘centre of gravity’, enables us to predict if it will fall over or balance. With a long thin object such as a ruler or broomstick, you can support it on both hands and gradually move your hands together. Where your hands meet the object should balance. This is ...
PowerPoint
... uniform field B points along the +z axis. Assume a, I, and B are known. How much does the potential energy of the system change as the coil moves from its initial position to its final position. ...
... uniform field B points along the +z axis. Assume a, I, and B are known. How much does the potential energy of the system change as the coil moves from its initial position to its final position. ...
15.6 Classical Precession of the Angular Momentum Vector
... in the quantum world (i.e., the value of the angular momentum for S = 1) then the angular momentum vector and the magnetic moment vector precess about the field direction with a characteristic angular frequency, ω, given by eq. 13, where γe is the magnetogyric ration of the electron and H is the str ...
... in the quantum world (i.e., the value of the angular momentum for S = 1) then the angular momentum vector and the magnetic moment vector precess about the field direction with a characteristic angular frequency, ω, given by eq. 13, where γe is the magnetogyric ration of the electron and H is the str ...
Z-pinch
... surface - averaged magnetic pressure (at the coils) – For configurations like the tokamak the maximum field at the magnet is of order twice the field in the plasma, whereas in the RFP the field at the magnet is less than in the plasma. – The engineering beta in an RFP reactor might be as much as twi ...
... surface - averaged magnetic pressure (at the coils) – For configurations like the tokamak the maximum field at the magnet is of order twice the field in the plasma, whereas in the RFP the field at the magnet is less than in the plasma. – The engineering beta in an RFP reactor might be as much as twi ...
Rotational States of Magnetic Molecules
... with E− − E+ ≡ ∆ being the tunnel splitting. Since the crystal field Hamiltonian ĤS does not possess the full invariance with respect to rotations, Ψ± should not be the eigenstates of J. However, a closed system consisting of the spin and the crystal does possess such invariance. It has been demons ...
... with E− − E+ ≡ ∆ being the tunnel splitting. Since the crystal field Hamiltonian ĤS does not possess the full invariance with respect to rotations, Ψ± should not be the eigenstates of J. However, a closed system consisting of the spin and the crystal does possess such invariance. It has been demons ...
MRAM Technical Guide
... Occupational Safety and Health Administration (OSHA) require a posted warning for areas around instruments that exceed 5 Gauss. As is evident, the specification for MRAM products exceeds these values by a wide margin. There are two main sources of magnetic fields— current-carrying wires and permanen ...
... Occupational Safety and Health Administration (OSHA) require a posted warning for areas around instruments that exceed 5 Gauss. As is evident, the specification for MRAM products exceeds these values by a wide margin. There are two main sources of magnetic fields— current-carrying wires and permanen ...
Magnetic Resonance Imaging
... Magnetic resonance imaging (MRI) scanning can discriminate between body substances based on their physical properties; for example, differences between water- and fat-containing tissues. MRI scanning is therefore particularly useful at providing highly detailed images of soft tissues. MRI scanning c ...
... Magnetic resonance imaging (MRI) scanning can discriminate between body substances based on their physical properties; for example, differences between water- and fat-containing tissues. MRI scanning is therefore particularly useful at providing highly detailed images of soft tissues. MRI scanning c ...
Torque On A Current Loop In A Uniform Magnetic Field
... • The direction of the area vector A is determined by the right hand rule: rotate the fingers of the right hand in the direction of the current in the loop, the thumb points in the direction of the area vector A. • The direction of the torque is also given by the right hand rule: point the fingers o ...
... • The direction of the area vector A is determined by the right hand rule: rotate the fingers of the right hand in the direction of the current in the loop, the thumb points in the direction of the area vector A. • The direction of the torque is also given by the right hand rule: point the fingers o ...
Superconducting magnet
A superconducting magnet is an electromagnet made from coils of superconducting wire. They must be cooled to cryogenic temperatures during operation. In its superconducting state the wire can conduct much larger electric currents than ordinary wire, creating intense magnetic fields. Superconducting magnets can produce greater magnetic fields than all but the strongest electromagnets and can be cheaper to operate because no energy is dissipated as heat in the windings. They are used in MRI machines in hospitals, and in scientific equipment such as NMR spectrometers, mass spectrometers and particle accelerators.