Explore 2: Shifting Plates and Wandering Poles
... Students will model magnetic reversal patterns and use paleomagnetic data to demonstrate plate motion. Background Some rocks are naturally magnetized. How? When igneous rocks cool down from the molten stage, or when sand grains gently settle down through water, the iron-rich molecules tend to align ...
... Students will model magnetic reversal patterns and use paleomagnetic data to demonstrate plate motion. Background Some rocks are naturally magnetized. How? When igneous rocks cool down from the molten stage, or when sand grains gently settle down through water, the iron-rich molecules tend to align ...
Lecture 1 History, Tools and a Roadmap James Clerk Maxwell
... Where to M.Es Come From? Gauss Law for electric fields Integral of the normal component of the electric field is proportional to the total charge enclosed: Int[E.dS] = (q / 0 = Int[' dv] / 0 Use Gauss’s theorem to relate surface integral to volume integral: Div[E] = ' / 0 BUT must in ...
... Where to M.Es Come From? Gauss Law for electric fields Integral of the normal component of the electric field is proportional to the total charge enclosed: Int[E.dS] = (q / 0 = Int[' dv] / 0 Use Gauss’s theorem to relate surface integral to volume integral: Div[E] = ' / 0 BUT must in ...
Document
... Here we find the solution by using an analogous method based on the results of static fields. The scalar potential caused by a point charge is obtained first, then use superposition principle to obtain the solution of the scalar potential due to a distribution of time-varying charge. If the source i ...
... Here we find the solution by using an analogous method based on the results of static fields. The scalar potential caused by a point charge is obtained first, then use superposition principle to obtain the solution of the scalar potential due to a distribution of time-varying charge. If the source i ...
E_M_1_doc
... Ask students to draw on the worksheet how electrons would be moving with respect to the atoms inside the wire. (The atoms would be stationary and the electrons would be moving down the wire in one direction or the other.) Now consider that the circuit was opened somehow. Draw the electrons in th ...
... Ask students to draw on the worksheet how electrons would be moving with respect to the atoms inside the wire. (The atoms would be stationary and the electrons would be moving down the wire in one direction or the other.) Now consider that the circuit was opened somehow. Draw the electrons in th ...
Electromagnetic Induction
... needed to produce a continuous current flow. The potential increase, or voltage, given to the charges by the pump is called the electromotive force, or EMF. Electromotive force, however, is not a force; it is a potential increase and is measured in volts. Thus the term EMF is misleading. Like many o ...
... needed to produce a continuous current flow. The potential increase, or voltage, given to the charges by the pump is called the electromotive force, or EMF. Electromotive force, however, is not a force; it is a potential increase and is measured in volts. Thus the term EMF is misleading. Like many o ...
as PDF - Unit Guide
... Physics, Motion and Force; and Electricity & Magnetism. You will have to register to use this site. • http://phet.colorado.edu/simulations/index.php?cat=Featured_Sims The University of Colorado, Boulder, Physics Education Technology (PhET) Simulations: follow the links to Motion; Energy, Work & Powe ...
... Physics, Motion and Force; and Electricity & Magnetism. You will have to register to use this site. • http://phet.colorado.edu/simulations/index.php?cat=Featured_Sims The University of Colorado, Boulder, Physics Education Technology (PhET) Simulations: follow the links to Motion; Energy, Work & Powe ...
Magnetic Battery Feasibility Study using Flux Switching Topology
... The results for the second prototype were surprisingly similar, differing only slightly in the average output voltages, efficiency, and maximum power. The second prototype had a maximum total efficiency of 78.5% and a maximum drive efficiency of 88.5%. These efficiencies were both less than those fo ...
... The results for the second prototype were surprisingly similar, differing only slightly in the average output voltages, efficiency, and maximum power. The second prototype had a maximum total efficiency of 78.5% and a maximum drive efficiency of 88.5%. These efficiencies were both less than those fo ...
Magnetic Force CHECK YOUR ANSWER
... Copyright © 2008 Pearson Education, Inc., publishing as Pearson Addison Wesley ...
... Copyright © 2008 Pearson Education, Inc., publishing as Pearson Addison Wesley ...
The Earth`s Magnetic Field
... electric currents in the the highly conductive outer core. The complex motion of the currents (or the fluid conducting material), is driven by convection and the rotation of the Earth.2 The energy needed to sustain this dynamo is believed to be produced by solidification; when the heaviest elements ...
... electric currents in the the highly conductive outer core. The complex motion of the currents (or the fluid conducting material), is driven by convection and the rotation of the Earth.2 The energy needed to sustain this dynamo is believed to be produced by solidification; when the heaviest elements ...
c2s6.DVI 12
... The work done is independent of the path joining the two points and depends only on the end points and the change in the potential. If one moves Q from infinity to point b, then the above becomes W = QV (b). ~ = E(P ~ ) is a vector field which can be represented graphically by constructing vectors A ...
... The work done is independent of the path joining the two points and depends only on the end points and the change in the potential. If one moves Q from infinity to point b, then the above becomes W = QV (b). ~ = E(P ~ ) is a vector field which can be represented graphically by constructing vectors A ...
Conceptual Physical Science 5e — Chapter 9
... moves parallel to magnetic field lines. Both of the above. Neither of the above. Explanation: A force is exerted on charged particles only when they move at an angle to magnetic field lines. The force is greatest when motion is at right angles to the magnetic field, and it is zero when motion is par ...
... moves parallel to magnetic field lines. Both of the above. Neither of the above. Explanation: A force is exerted on charged particles only when they move at an angle to magnetic field lines. The force is greatest when motion is at right angles to the magnetic field, and it is zero when motion is par ...
Vector potential, electromagnetic induction and “physical meaning”
... null (no galvanometer deviation), they prove that a variation of the magnetic flux does not produce an induced emf 5 . These experiments corroborate the theoretical statement according to which “The flux of the magnetic field through an arbitrary surface that has the circuit as contour is not the ca ...
... null (no galvanometer deviation), they prove that a variation of the magnetic flux does not produce an induced emf 5 . These experiments corroborate the theoretical statement according to which “The flux of the magnetic field through an arbitrary surface that has the circuit as contour is not the ca ...
Particle-in-cell simulations of fast magnetic field penetration into
... The size of these vortices is on the order of the collisionless electron skin depth and is closely coupled to the effects of electron inertia. An energy analysis shows that one-half the energy entering the plasma is stored as magnetic field energy while the other half is shared between internal plas ...
... The size of these vortices is on the order of the collisionless electron skin depth and is closely coupled to the effects of electron inertia. An energy analysis shows that one-half the energy entering the plasma is stored as magnetic field energy while the other half is shared between internal plas ...
Lecture 23 Chapter 31 Induction and Inductance
... dB b, then d & e tie, then E = − NAcosθ = − NA a & c (zero) dt dt ...
... dB b, then d & e tie, then E = − NAcosθ = − NA a & c (zero) dt dt ...
Magnetism
Magnetism is a class of physical phenomena that are mediated by magnetic fields. Electric currents and the magnetic moments of elementary particles give rise to a magnetic field, which acts on other currents and magnetic moments. Every material is influenced to some extent by a magnetic field. The most familiar effect is on permanent magnets, which have persistent magnetic moments caused by ferromagnetism. Most materials do not have permanent moments. Some are attracted to a magnetic field (paramagnetism); others are repulsed by a magnetic field (diamagnetism); others have a more complex relationship with an applied magnetic field (spin glass behavior and antiferromagnetism). Substances that are negligibly affected by magnetic fields are known as non-magnetic substances. These include copper, aluminium, gases, and plastic. Pure oxygen exhibits magnetic properties when cooled to a liquid state.The magnetic state (or magnetic phase) of a material depends on temperature and other variables such as pressure and the applied magnetic field. A material may exhibit more than one form of magnetism as these variables change.