Obtaining A(r) Using Ampere's Law: Question on a Past Paper

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The discussion focuses on deriving the magnetic vector potential A for a straight wire carrying a steady current I using Ampere's law. The user has successfully obtained the magnetic field B but finds the transition to A challenging. There is a debate about the relevance of magnetic potential in modern physics, with some participants affirming its importance. Additionally, there is a suggestion to move the conversation to a homework section for better organization. The conversation highlights the complexities of applying theoretical concepts in practical scenarios.
RyanBoulton
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Can anyone help me with this, i have done the first part, whereas i have obtained B using ampere's law. But changing it to A (magnetic vector potential) is proving to be tricky.

A long straight wire of radius a carries a uniform steady current I. Using the integral
form of Ampere's law, obtain an expression for the magnetic vector potential A(r)
at a distance r < a.

Cheers
 
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You should clarify what magnetic potential is, I mean, nowadays it is not used .

It may be similar to magnetic field B so keep on trying what you first did.

salutations
 
What do you mean that the magnetic potential is not used? Sure it is.

That said, this really needs to go into the homework section.
 
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