Coulomb force, attraction or repulsion of particles or objects because of their electric charge. One of the basic physical forces, the electric force is named for a French physicist, Charles-Augustin de Coulomb, who in 1785 published the results of an ex
Magnetism - Electric Currents, Forces, Fields: Magnetic fields produced by electric currents can be calculated for any shape of circuit using the law of Biot and Savart, named for the early 19th-century French physicists Jean-Baptiste Biot and Félix Sav
An external electric or magnetic field can transfer high-intensity energy directly to the electronic scale of materials, and change the spin, energy level arrangement and trajectory of electrons. These changes produce tremendous and profound impacts on the microstructure and mechanical properties of metal...
A new method for calculating electric and magnetic forces is presented. The method makes it possible to calculate forces directly from scalar and vector potentials rather than from field vectors. Several new force equations are derived. They are grouped in four categories: equations for calculating ...
More examples of fields of non-contact forces are the magnetic and gravitational fields. For an isolated electric charge Q, Coulomb's law algebraic equation is {eq}F=\frac{k*q*Q}{r^2} {/eq} But {eq}F= {q}{E}{/eq} This can be written as: {eq}\frac{k*q*Q}{r^2}={q}{...
Influence of the load angle on magnetic radial forces and torque ripple of a low power permanent magnet synchronous machine The influence of internal dissipation on the rotational motion of the Earth in the gravitational field of the Sun and Moon is studied within the model of M... Mathematics...
Apparatus for determining electric or magnetic forcesAdolphus Gipperich
"JasonFriedandDavidHanssonfollowtheirownadviceinREWORK,layingbarethesurprisingphilosophiesatthec... 8.7 正在爆发的互联网革命 短短20年里,互联网经历了门户网站和Web2.0时代的重大变革,如今已经迈入社会化网络时代。新一轮的互联网革命即将爆发,而其影响已经开始……本书详细介绍了SNS(社会化网络)的起源和理论模...
The diagram shows the forces acting on a positivechargeqlocated between two plates, A and B, of an electric fieldE. Theelectric forceFexertedby the field on the positive charge isF=qE;to move the charge from plate A to plate B, an equal and opposite force (F′ = −qE) must then ...
The emergence of collective order in matter is among the most fundamental and intriguing phenomena in physics. In recent years, the dynamical control and creation of novel ordered states of matter not accessible in thermodynamic equilibrium is receiving