- #1
Gauss M.D.
- 153
- 1
Homework Statement
Infinite straight conductor, parallel with z axis, of radius R1 with a cylindrical cavity of radius R2. The axis of the cavity passes through the point <0,b,0>. A current I flows through the conductor. The current density is homogenous inside the cundoctor. Find the direction and magnitude of the B-field inside the cavity.
Homework Equations
The Attempt at a Solution
I think we're supposed to use
[itex]\oint \textbf{B} \cdot \textbf{dl} = \mu _0 I[/itex]
Where we first do the outer line integral, and then subtract the inner line integral.
1) Am I on to something?
2) How do I do the inner line integral in the most convenient way?