Question: Given the magnetic vector potential A = - 9 a , Wb / m , calculate the total magnetic flux crossing the surface and length

Given the magnetic vector potential A =-
9
a, Wb/m, calculate the total magnetic flux
crossing the surface and length of 0=2,15r $2 m,0 $ 255 m.
= J, B.ds = Js (V x A).ds
= Js (V x A).ds = $ A.dL

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