forces - What is magnetic flux density - Physics Stack Exchange
2020年12月7日 · Why it is useful: Knowing the magnetic flux for a given surface, such as a sheet of metal being magnetised, is useful, however magnetic flux will change depending on what size the sheet is. The magnetic flux density, however, applies no matter what size the sheet of metal is, as long as distance from the magnetic field source is kept the same.
electromagnetism - Magnetic flux and magnetic flux desity
2021年5月19日 · Magnetic flux is the amount of magnetic field passing through a given area. The unit is Tm 2 or Wb. Magnetic flux density is the amount of magnetic field passing through a unit area. The unit is Wb/m 2 or T. Think about it this way: normal density, as in the density of objects, is the mass per unit volume.
homework and exercises - Total flux around a long straight …
2018年10月2日 · The magnetic flux density around a long straight conductor is given, B = $\dfrac{\mu_0\cdot I}{2\pi R}$ I have integrated this expression (along a conductor of length l) in order to calculate the f...
Examples of materials with saturation magnetic flux densities over 8T
2017年10月15日 · There is a practical limit for materials, but if one has no budget limit with high power, cryogenic cooling extreme high T flux density cores passing > 10 T do exist. This query is a duplicate if you know how to search and you will find exotic ferrites with hard/soft magnetic particles with low permeability and high B field saturation limits.
Magnetic field lines and magnetic flux density - Physics Stack …
2020年2月1日 · Note, the magnetic flux is a scalar quantity, while the magnetic field and area are bivectors. In electromagnetism, ‘flux’ is defined as a scalar (the surface integral of a vector field, i.e. a density function by unit area), with the term ‘flux density’ used for the bivector or vector.
How does change in magnetic flux density only induce EMF?
2018年3月3日 · Magnetic flux linkage is equal to the product of number of turns, area, and magnetic flux density. So EMF can be induced by changing the area, or magnetic flux density. I can understand that changing the area means moving electrons, which generate magnetic fields that interact with other magnetic fields to produce EMF.
electromagnetism - What is the magnetic flux density field of two ...
2020年10月31日 · As Puk already answered you, the resultant magnetic flux density is the superposition of the magnetic flux densities generated by each wire. I'm submitting a new answer because I think that the equation in the Cartesian coordinate system will help the summation. The magnetic field due to a infinite single wire located at $(x_0,y_0,z)$ is
Why is the unit of Magnetic flux is $T m^2$ and not $T m^{-2}$
2020年9月12日 · It is a flux density, because a Tesla is also a Weber/m $^2$, where a Weber, Wb, is a unit of magnetic flux. To get a magnetic flux from a magnetic flux density, you have to integrate over an area, i.e. $$ \Phi = \int {\bf B}\cdot d{\bf A}\ .$$ Clearly then, the units of flux $\Phi$ are either Tm $^2$, or Wb.
Magnetic flux density of a solenoidal electromagnet
2015年10月26日 · So I used to formula found at hyperphysics which relates the magnetic field flux density to the number of turns, the current and the material permeability. However after buying a 10cm length of rod of Fe55Ni45 (which has a magnetic permeability of at least 6000) the results are disappointing.
electromagnetism - Magnetic field strength vs flux density
2017年1月17日 · Nowadays, we call $\mathbf B$ the magnetic field and $\mathbf H $ just the "H field". In the older books, they call $\mathbf H $ the magnetic field, and $\mathbf B $ the magnetic flux density or something of that sort.