Magnetism, difference between B, H and M

lys04
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Homework Statement
What's the difference between B, H and M in magnetism?
Relevant Equations
B, H, M
As the homework statement suggests
 
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What research have you done? What does your textbook say?
B, H, M is a juxtaposition of symbols not a "relevant equation."
"As the homework statement suggests" is not a credible attempt at answering the question.

Please try harder.
 
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Likes Vanadium 50 and PeterDonis
You must also show your work and where you got stuck.
 
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It's given a gas of particles all identical which has T fixed and spin S. Let's ##g(\epsilon)## the density of orbital states and ##g(\epsilon) = g_0## for ##\forall \epsilon \in [\epsilon_0, \epsilon_1]##, zero otherwise. How to compute the number of accessible quantum states of one particle? This is my attempt, and I suspect that is not good. Let S=0 and then bosons in a system. Simply, if we have the density of orbitals we have to integrate ##g(\epsilon)## and we have...
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