The coaxial cable shown in FIGURE P29.56 consists of a solid inner conductor of radius R 1

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The coaxial cable shown in FIGURE P29.56 consists of a solid inner conductor of radius R1surrounded by a hollow, very thin outer conductor of radius R2. The two carry equal currents I, but in opposite directions. The current density is uniformly distributed over each conductor.

imagea. Find expressions for three magnetic fields: within the inner conductor, in the space between the conductors, and outside the outer conductor.b. Draw a graph of B versus r from r = 0 to r = 2R2 if R1 = 1/3 R2.

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