Answered: Figure 8 shows a coaxial cable (two… | bartleby

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Figure 8 shows a coaxial cable (two nested cylinders) of length l, inner radius a and outer radius b. Note that l >> a and l >> b. The inner cylinder is charged to +Q and the outer cylinder is charged to −Q.

The cable carries a current I, which flows clockwise. Use Ampere’s Law to calculate the
magnetic field B⃗ at r<a, a<r<b, and r>b.

b.
R
a

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