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Author Topic: Transformer Induction  (Read 37588 times)

Group: Mad Scientist
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Feature                                       E Field                            B Field                             H Field


Common Name                          Electric Field           Magnetic Flux Density        Magnetic Field Strength

Primary Source                           Charges(Q)            Total Current (J total)         Free Current(J free)

Physical Effect                        Pushes charges         Deflects moving charges       Magnetizes materials

SI Unit                                        V/m                           Tesla (T)                                A/m


Utility: Engineers use it because it depends only on the driving current, making it easier to calculate in complex circuits.


mags


« Last Edit: 2026-03-01, 18:24:57 by Magluvin »
   

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What is the difference between the magnetic H field and the B field?

H is a bit like the number of magnetic field lines and B kinda is how tightly packed they are. More amps/more turns/shorter core means more field lines (bigger H - Aturns/m), higher permeability (measure of how easily those field lines can "flow") means they can be packed tighter together in the core (larger B - more intense magnetic field).



mags
« Last Edit: 2026-03-01, 18:30:09 by Magluvin »
   

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What is the difference between the magnetic H field and the B field?
Perceived origin.
In SI base units the B field is kg/A⋅s² and the H field is A/m so you need to divide the B field by Newton/Ampere² to obtain the H field ( incidentally N/A² = µ₀ ).
...and √(1/µ₀ε₀) = speed of light (c).

H is a bit like the number of magnetic field lines and B kinda is how tightly packed they are.
Φ is the number of magnetic field lines.  B is their areal density ( or like you wrote: "how tightly packed they are" ).
   

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There is something important missing from this table that we all know and use, magnetic attraction or repulsion.  I have added it in red using your word Pushes to mean applying force..

Feature                                       E Field                            B Field                             H Field


Common Name                          Electric Field           Magnetic Flux Density        Magnetic Field Strength

Primary Source                           Charges(Q)            Total Current (J total)         Free Current(J free)

Physical Effect                        Pushes charges         Deflects moving charges       Magnetizes materials

                                                                          Pushes magnetic dipoles

SI Unit                                        V/m                           Tesla (T)                                A/m

Electrons have a magnetic dipole moment in addition to their mass and electric charge.  Moving electrons are the life-blood of our electrical world so it is surprising that none of our devices use their magnetic property, the Bohr magneton, to achieve movement.  There will soon be more on this subject in my Energy from electron spin bench https://www.overunityresearch.com/index.php?topic=4307.msg99424#msg99424.

Smudge
   
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