Undergrad Can anyone tell me what these formulas in electromagnetism are called?

  • Thread starter Thread starter Ren_Hoek
  • Start date Start date
  • Tags Tags
    Electromagnetism
Click For Summary
The discussion centers on understanding specific electromagnetism formulas, particularly magnetic flux (Φ), magnetic flux density (B), permeability (μ), reluctance (Rc), and magnetomotive force (MMF). Participants express confusion about the derivation of these formulas and seek clarification on their references, noting that the equations are not presented in standard form. There is also a suggestion to use LaTeX for clearer presentation of the equations instead of unclear images. The conversation highlights the importance of clear communication in technical discussions. Overall, the need for better resources and clarity in formula presentation is emphasized.
Ren_Hoek
Messages
11
Reaction score
0
1720116005820.png
1720116013860.jpeg

I know what ##\Phi## and B are, I think they are the magnetic flux and its density. I think ##\mu## is the permeability. But I dont know what ##R_c## and MMF are and how are these formulas deduced.
 
Physics news on Phys.org
Oh I see ##R_c## is the reluctance and MMF is magnetomotive force. I still dont know how these formulas are derived tho.
 
Which reference did you get these from ? They aren't in the usual standard form.
 
Ren_Hoek said:
View attachment 347806View attachment 347807
I know what ##\Phi## and B are, I think they are the magnetic flux and its density. I think ##\mu## is the permeability. But I dont know what ##R_c## and MMF are and how are these formulas deduced.
Since you seem to know how to use LaTeX, is there a reason you did not post those equations you are asking about using LaTeX instead of those fuzzy images?
 
berkeman said:
Since you seem to know how to use LaTeX, is there a reason you did not post those equations you are asking about using LaTeX instead of those fuzzy images?
oh it's others' hand script
 
Ren_Hoek said:
oh it's others' hand script
Maybe so, but if you can read it, you can also enter it in LaTeX to benefit the rest of us.
 
Reply
  • Like
Likes PhDeezNutz, berkeman, Vanadium 50 and 1 other person

Thread 'Does acceleration affect impact energy vs constant velocity?'

I do not have a good working knowledge of physics yet. I tried to piece this together but after researching this, I couldn’t figure out the correct laws of physics to combine to develop a formula to answer this question. Ex. 1 - A moving object impacts a static object at a constant velocity. Ex. 2 - A moving object impacts a static object at the same velocity but is accelerating at the moment of impact. Assuming the mass of the objects is the same and the velocity at the moment of impact...
View full post »

Similar threads

High School Understanding magnetic flux change during the falling of magnet
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad How can concentration gradient field come into existence immediately?
  • · Replies 1 ·
Replies
1
Views
3K
EMF (Electromagnetic Field) & EHS (Electromagnetic Hyper Sensitivity)
  • · Replies 3 ·
Replies
3
Views
462
Undergrad Is This Correct Description of Magnetic Saturation?
  • · Replies 14 ·
Replies
14
Views
2K
Undergrad Force exerted by an iron core electromagnet on a ferrofluid
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Do electromagnetic waves fade with distance in vacuum?
  • · Replies 2 ·
Replies
2
Views
1K
What are the operators here and how are these formulas derived?
  • · Replies 11 ·
Replies
11
Views
2K
Undergrad The Method of Images (Electromagnetism)
  • · Replies 4 ·
Replies
4
Views
3K
Undergrad Two ways of constructing electromagnetism, which is correct?
  • · Replies 7 ·
Replies
7
Views
1K
Need an electromagnet to play Chess
  • · Replies 37 ·
2
Replies
37
Views
4K