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An infinitely long solid cylindrical cable (radius R, centered on the z-axis) carries a volume current...

An infinitely long solid cylindrical cable (radius R, centered on the z-axis) carries a volume current ?⃗ = (??^5) ?̂, The cable is surrounded by a concentric, infinitely long solenoid (radius 3R, n turns /m) carrying a current ?0.

a. Find expressions for the magnetic field in all regions of space.

b. Graph the field as a function of position along the x-axis.

c. Find the force on a segment of wire from (x = 4R, y = 0, z = 0) to (x = 4R, y = 0, z = L) carrying current (?0)?̂.

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