B And H
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In magnetism, what is the difference between the B and H fields?
WEBJan 18, 2010 · B field is dependent to a considerable extent on currents, both microscopic and macroscopic while the H field depends on microscopic currents. B field lines always form loops around the total current. In the case of H field the lines always loops around free current. They begin and end near magnetic poles.
Physicsforums.comWhat's the Difference Between B, H, D and E? - Physics Forums
WEBOct 30, 2004. Difference. In summary, B = μH and D = εE in the equations for magnetic and electric flux densities, respectively. The main difference between b and h is that B is the total magnetic field, while H is the magnetic field in a vacuum. Similarly, D is the total electric field, while E is the electric field in a vacuum.
Physicsforums.comElectromagnetic Field, H vs. B - Physics Forums
WEBJul 7, 2005 · H and B are both components of an electromagnetic field, but they represent different physical quantities. H, also known as magnetic field intensity, is the measure of the strength of the magnetic field generated by electric currents. B, also known as magnetic flux density, is the measure of the density of magnetic flux in a given area.
Physicsforums.comRelation between H and B fields, and D and E fields - Physics …
WEBDec 7, 2006 · marcusl said: robphy said: From a more abstract viewpoint, H and B aren't even the same type of geometrical object. H is a [twisted-]1-form in space, which is associated with a line-integral, and B is a 2-form in space, which is associated with a surface-integral. Similarly, E is a 1-form and D is a [twisted-]2-form.
Physicsforums.com知乎，让每一次点击都充满意义 —— 欢迎来到知乎，发现问题背 …
WEB知乎，让每一次点击都充满意义 —— 欢迎来到知乎，发现问题背后的世界。
Zhihu.comExercise 2.23 in Folland's real analysis text - Physics Forums
WEBSep 17, 2024 · 29. TL;DR Summary. I have some elementary doubts about two functions specified in an exercise in Folland's book. This exercise is supposed to establish the Lebesgue criterion for Riemann integrability. 23. Given a bounded function , let Prove Theorem 2.28b by establishing the following lemmas: a) iff is continuous at .
Physicsforums.comArrangement of eight people around a square table (problem from
WEBSep 30, 2012 · Hi Here is the statement of the problem from Ralph Grimaldi's discrete math book. a) In how many ways can eight people, denoted A,B,,H be seated about the square table shown in the figure (see attachment), where Figs 1.6 (a) and 1.6 (b) are considered the same but are distinct from Fig 1.6
Physicsforums.comPermanent Magnets Explained by Magnetic Surface Currents
WEBJan 16, 2017 · The magnetization of a permanent magnet is maintained by the magnetic field from its magnetic surface currents in a self-consistent manner. In this Insight, a couple of rather straightforward calculations will be performed to show how the permanent magnet state results. (Note: In this Insight, c.g.s. units are being used, but the reader can
Physicsforums.comConstant Acceleration of Two Cars - Physics Forums
WEBFeb 2, 2008 · In summary, two cars are traveling along a straight road, with car A maintaining a constant speed of 80 km/h and car B maintaining a constant speed of 110 km/h. At t=0, car B is 45 km behind car A. To find how much farther car A will travel before car B overtakes it, an equation of 110x = 80x+45 is used, where x represents time. …
Physicsforums.comBall collision when one is dropped and the other thrown up
WEBSep 18, 2012 · Then, for ball B, we can use an equation involving the initial velocity and time to solve for the initial velocity, which will also depend on h. Finally, we can use an equation to express h in terms of the distance traveled by ball B, and use this to solve for h. It is important to focus on the real physics of the problem rather than just plugging
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