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

[RyanBoulton]

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

 

[Zaphys]

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

 

[Vanadium 50]

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.