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evanclear
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Homework Statement
A long coaxial cable consists of two concentric conductors with dimensions a = 1.20 cm, b = 5.40 cm and c = 7.30 cm. There are equal and opposite currents of 5.00 A in the conductors. Find the magnitude of the magnetic field at a distance of 0.36 cm from the center axis.
Homework Equations
[itex]\oint[/itex]B*dl=μ_0*I_enclosed
The Attempt at a Solution
Far as i can tell because the outer portion of the wire is not enclosed I enclosed for that portion of the problem is 0 so:
B=I*r[itex]/[/itex]2∏a2
But I'm not getting the right answer.
Any help would be greatly appreciated
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