What Changes If i Place two magnets together?

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Discussion Overview

The discussion centers on the effects of placing two magnets together, specifically regarding changes in magnetic properties such as magnetic moment and the arrangement of poles. Participants explore theoretical implications and practical observations related to magnetism.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification

Main Points Raised

  • One participant inquires about the changes in magnetic moment and magnetic field strength when two magnets are united.
  • Another participant suggests that placing the north pole of one magnet against the south pole of another effectively creates a new magnet with poles that are farther apart.
  • A different participant expresses confusion regarding a claim that the magnetic moment could go to zero when uniting magnets with opposite poles, indicating a need for clarification on this point.
  • One participant acknowledges the complexity of magnetism and explains that the magnetic moment may decrease as the magnets approach each other, potentially reaching zero depending on the model used.
  • A simplified comparison is made between the state of having two separate magnets and the resulting configuration of a single longer magnet with two poles.

Areas of Agreement / Disagreement

Participants express varying views on the effects of uniting magnets, with some confusion about the implications for magnetic moment. No consensus is reached regarding the specific changes that occur.

Contextual Notes

There are unresolved assumptions about the definitions of magnetic moment and the models used to describe magnet behavior. The discussion does not clarify the conditions under which the magnetic moment might go to zero.

Sylvester1
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What Changes If i Place two magnets together??

Hello everybody,

i wanted to ask what changes when i unite two magnets ??

except from the dimensions does magnetic moment, Br change?


Thanx in advance!
 
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You mean when you sit a N-pole of one magnet on a S-pole of another?
You've just made a new magnet with poles farther apart haven't you?
You should be able to work out the consequences from you existing knowledge of how magnets work.

Similarly - what happens when you saw a magnet in half and separate the halves?
 
xmmm ok thanx!it is just that i read somewhere that magnetic moment goes to zero if i unite 2 magnets in their different poles and that confused me a bit!
 
Magnetism is very complicated so it is common to get confused.
The moment between the poles gets very small as they approach each other - yes - and may go to zero if the model puts the pole "charge" on the surface of the physical magnets. However each magnet has another pole.

In a simple before and after picture using poles:
- before you had two separate short magnets each with two poles for a total of four;
- after you have one long magnet with two poles.
 

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