Physics 208
... Two equal, positive charges of magnitude q are positioned along the x-axis as shown. What would be the force on a positive charge, q0 , placed on the y-axis a distance H from the x-axis? y q0 ...
... Two equal, positive charges of magnitude q are positioned along the x-axis as shown. What would be the force on a positive charge, q0 , placed on the y-axis a distance H from the x-axis? y q0 ...
Introduction to Single Molecular Magnet
... Yet, there is another kind of paramagnetic behavior exhibited by some metals which arises on the application of magnetic field that can be realized in a free electron gas mode. The density of states of free electron gas in absence of external magnetic field has equal number of up spins and down spins ...
... Yet, there is another kind of paramagnetic behavior exhibited by some metals which arises on the application of magnetic field that can be realized in a free electron gas mode. The density of states of free electron gas in absence of external magnetic field has equal number of up spins and down spins ...
Magnetic Fields - Madison Public Schools
... Magnetic force exerted by the magnetic field on a current-carrying wire If a current-carrying wire is similar in some ways to a magnet, then a magnetic field should exert a magnetic force on a current-carrying wire similar to the force it exerts on another magnet. A magnet sometimes pulls on a w ...
... Magnetic force exerted by the magnetic field on a current-carrying wire If a current-carrying wire is similar in some ways to a magnet, then a magnetic field should exert a magnetic force on a current-carrying wire similar to the force it exerts on another magnet. A magnet sometimes pulls on a w ...
幻灯片 1
... The direction of interaction force between two small charged balls at rest is along the line connected them, the magnitude F of interaction force is direct proportional to the product of charges q1 and q2 , and is opposite proportional to the square of distance r separated them, like charges repel ...
... The direction of interaction force between two small charged balls at rest is along the line connected them, the magnitude F of interaction force is direct proportional to the product of charges q1 and q2 , and is opposite proportional to the square of distance r separated them, like charges repel ...
Lecture 8: Mirror / tokamak
... One can either: live with it / drive current another way / use a different concept ...
... One can either: live with it / drive current another way / use a different concept ...
Some beautiful equations of mathematical physics
... Many quotations remind us of Dirac’s ideas about the beauty of fundamental physical laws. For example, on a blackboard at the University of Moscow where visitors are asked to write a short statement for posterity, Dirac wrote: “A physical law must possess mathematical beauty.” Elsewhere he wrote: “ ...
... Many quotations remind us of Dirac’s ideas about the beauty of fundamental physical laws. For example, on a blackboard at the University of Moscow where visitors are asked to write a short statement for posterity, Dirac wrote: “A physical law must possess mathematical beauty.” Elsewhere he wrote: “ ...
Chapter 34
... Neither stationary charges nor steady currents can produce electromagnetic waves. The fundamental mechanism responsible for this radiation is the acceleration of a ...
... Neither stationary charges nor steady currents can produce electromagnetic waves. The fundamental mechanism responsible for this radiation is the acceleration of a ...
Document
... The magnetic field of the earth. The magnetic field surrounding the earth is produced by convection currents in the outer core of the earth in combination with the rotation of the earth. The shape of the field, however, is very much like that of a bar magnet, and so one can imagine a bar magnet in t ...
... The magnetic field of the earth. The magnetic field surrounding the earth is produced by convection currents in the outer core of the earth in combination with the rotation of the earth. The shape of the field, however, is very much like that of a bar magnet, and so one can imagine a bar magnet in t ...
Magnetic monopole
A magnetic monopole is a hypothetical elementary particle in particle physics that is an isolated magnet with only one magnetic pole (a north pole without a south pole or vice versa). In more technical terms, a magnetic monopole would have a net ""magnetic charge"". Modern interest in the concept stems from particle theories, notably the grand unified and superstring theories, which predict their existence.Magnetism in bar magnets and electromagnets does not arise from magnetic monopoles. There is no conclusive experimental evidence that magnetic monopoles exist at all in our universe.Some condensed matter systems contain effective (non-isolated) magnetic monopole quasi-particles, or contain phenomena that are mathematically analogous to magnetic monopoles.