A long straight wire carries a current I = 10 A. At what distance is the magnetic field H = 1 A/m?

A long straight wire carries a current I = 10 A. At what distance is t

1.	A long straight wire carries a current I = 10 A. At what distance is the magnetic field H = 1 A/m?
A.	10/2π
B.	½ π
C.	5/2π
D.	20/2π
Answer» B. ½ π

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A long straight wire carries a current I = 10 A. At what distance is the magnetic field H = 1 A/m?

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