Homopolar motors : (~3040 min)
... interaction between the magnetic fields of magnets or between a magnet and materials made of iron. Objective 1: Investigate and compare the behavior of magnetism using magnets. a. Compare various types of magnets (e.g., permanent, temporary, and natural magnets) and their abilities to push or p ...
... interaction between the magnetic fields of magnets or between a magnet and materials made of iron. Objective 1: Investigate and compare the behavior of magnetism using magnets. a. Compare various types of magnets (e.g., permanent, temporary, and natural magnets) and their abilities to push or p ...
MagnetosphereFormation
... Far from the FFS the particles move virtually along the magnetic field lines. Their energy is determined from the balance between the power of accelerated electric field forces and the curvature radiation intensity. When intersecting the FFS, the particles oscillate ultrarelativistically, their ener ...
... Far from the FFS the particles move virtually along the magnetic field lines. Their energy is determined from the balance between the power of accelerated electric field forces and the curvature radiation intensity. When intersecting the FFS, the particles oscillate ultrarelativistically, their ener ...
magnetic energy acumulation in the coronal current sheet
... Solar flares - the explosive processes of energy release in the solar corona that occur on the background of stable work of the Sun fusion reactor and conservation of the solar constant. Unexpectedly, during a few minutes the energy 1032 - 1033 erg, which corresponds to the explosion of a million of ...
... Solar flares - the explosive processes of energy release in the solar corona that occur on the background of stable work of the Sun fusion reactor and conservation of the solar constant. Unexpectedly, during a few minutes the energy 1032 - 1033 erg, which corresponds to the explosion of a million of ...
A Brief History of Planetary Science
... Steady -Incompressible -Nonviscous -Irrotational -- ...
... Steady -Incompressible -Nonviscous -Irrotational -- ...
Build an Electromagnet Problem: How can I make a stronger magnet
... F: Attitudes in Science Research: You have experimented with magnets in class, but scientist sometime need to use very powerful magnets. But a powerful magnet has a problem, how can the magnet be turned off and on? In 1820, a Danish physicist Hans Christian Oersted, discovered that there was a relat ...
... F: Attitudes in Science Research: You have experimented with magnets in class, but scientist sometime need to use very powerful magnets. But a powerful magnet has a problem, how can the magnet be turned off and on? In 1820, a Danish physicist Hans Christian Oersted, discovered that there was a relat ...
PHYS 222 General Physics II Course Outcome Summary Course
... PHYS 222 General Physics II Course Outcome Summary Course Information Organization Developers Development Date Course Number ...
... PHYS 222 General Physics II Course Outcome Summary Course Information Organization Developers Development Date Course Number ...
Stockholm University
... Aims. Twisted magnetic fields are frequently seen to emerge above the visible surface of the Sun. This emergence is usually associated with the rise of buoyant magnetic flux structures. Here we ask how magnetic fields from a turbulent large-scale dynamo appear above the surface if there is no magnet ...
... Aims. Twisted magnetic fields are frequently seen to emerge above the visible surface of the Sun. This emergence is usually associated with the rise of buoyant magnetic flux structures. Here we ask how magnetic fields from a turbulent large-scale dynamo appear above the surface if there is no magnet ...
PHYSICS 208 Week 1 Mechanics Review and Coulomb`s Law a
... b. To calculate the motion of charged particles in magnetic and electric fields c. To find the magnetic force on a current carrying wire Week 9 Ampere’s Circuital Law a. To apply Ampere’s Principle to infinitely long thin wire b. To apply Ampere’s Principle to a current carrying loop c. To evaluate ...
... b. To calculate the motion of charged particles in magnetic and electric fields c. To find the magnetic force on a current carrying wire Week 9 Ampere’s Circuital Law a. To apply Ampere’s Principle to infinitely long thin wire b. To apply Ampere’s Principle to a current carrying loop c. To evaluate ...
Probability Distribution Function
... Assuming that the lognormality of the concentration flux results from repeated, random fragmentation, we may attribute meaning to the distribution parameter. The variance of ln F, s2, is proportional to the number of independent fragmentations that produced a given concentration from a single initia ...
... Assuming that the lognormality of the concentration flux results from repeated, random fragmentation, we may attribute meaning to the distribution parameter. The variance of ln F, s2, is proportional to the number of independent fragmentations that produced a given concentration from a single initia ...
Session 2P4 Electromagnetic Field in Optical Materials and
... divided by the cell volume. Our formula gives the same result as that of Boardman’s [1] in the lossless limit, but different from theirs when energy loss cannot be neglected. We explain the physically meaning of every term appearing in the energy density formula, and compare the result with those ob ...
... divided by the cell volume. Our formula gives the same result as that of Boardman’s [1] in the lossless limit, but different from theirs when energy loss cannot be neglected. We explain the physically meaning of every term appearing in the energy density formula, and compare the result with those ob ...
PHYS 4202/6202 (as of Jan. 03/2015) Electricity and Magnetism II
... Use a buddy system: find a friend with whom to discuss physics. Think about physics on a regular basis. Think about physics as much as possible. Think about physics at all times. If you decide to stay in academia, you will be competing against fanatics; so prepare early. 12. If everything fails, con ...
... Use a buddy system: find a friend with whom to discuss physics. Think about physics on a regular basis. Think about physics as much as possible. Think about physics at all times. If you decide to stay in academia, you will be competing against fanatics; so prepare early. 12. If everything fails, con ...
The Power of Magnets
... A permanent magnet is a magnet that is permanent, in contrast to an electromagnet, which only behaves like a magnet when an electric current is flowing through it. Permanent magnets are made out of substances like magnetite (Fe3O4), the most magnetic naturally occurring mineral, or neodymium, a powe ...
... A permanent magnet is a magnet that is permanent, in contrast to an electromagnet, which only behaves like a magnet when an electric current is flowing through it. Permanent magnets are made out of substances like magnetite (Fe3O4), the most magnetic naturally occurring mineral, or neodymium, a powe ...
proposal and modalities for combined geoscientist examination for
... (Instrumentation) and Mineral Physics to suit the redefined objectives under different missions and for better cadre management. HPC report has also taken into view of the emerging of integrated and multi disciplinary branches of earth sciences. To rationalize the system of recruitment for the post ...
... (Instrumentation) and Mineral Physics to suit the redefined objectives under different missions and for better cadre management. HPC report has also taken into view of the emerging of integrated and multi disciplinary branches of earth sciences. To rationalize the system of recruitment for the post ...
AC Circuits
... configurations (includes the Law of Biot and Savart for magnetic fields). Maxwell's equations - Maxwell's contribution and significance. DC circuits - Ohm's Law, Kirchhoff's Rules, power, series-parallel combinations. Series RLC circuits - phasor diagrams, phase angle, current, power factor Vectors ...
... configurations (includes the Law of Biot and Savart for magnetic fields). Maxwell's equations - Maxwell's contribution and significance. DC circuits - Ohm's Law, Kirchhoff's Rules, power, series-parallel combinations. Series RLC circuits - phasor diagrams, phase angle, current, power factor Vectors ...
Ferrofluid
A ferrofluid (portmanteau of ferromagnetic and fluid) is a liquid that becomes strongly magnetized in the presence of a magnetic field.Ferrofluid was invented in 1963 by NASA's Steve Papell as a liquid rocket fuel that could be drawn toward a pump inlet in a weightless environment by applying a magnetic field.Ferrofluids are colloidal liquids made of nanoscale ferromagnetic, or ferrimagnetic, particles suspended in a carrier fluid (usually an organic solvent or water). Each tiny particle is thoroughly coated with a surfactant to inhibit clumping. Large ferromagnetic particles can be ripped out of the homogeneous colloidal mixture, forming a separate clump of magnetic dust when exposed to strong magnetic fields. The magnetic attraction of nanoparticles is weak enough that the surfactant's Van der Waals force is sufficient to prevent magnetic clumping or agglomeration. Ferrofluids usually do not retain magnetization in the absence of an externally applied field and thus are often classified as ""superparamagnets"" rather than ferromagnets.The difference between ferrofluids and magnetorheological fluids (MR fluids) is the size of the particles. The particles in a ferrofluid primarily consist of nanoparticles which are suspended by Brownian motion and generally will not settle under normal conditions. MR fluid particles primarily consist of micrometre-scale particles which are too heavy for Brownian motion to keep them suspended, and thus will settle over time because of the inherent density difference between the particle and its carrier fluid. These two fluids have very different applications as a result.