A Hollow Cylindrical (Inner Radius = 2

question 72

Multiple Choice

A hollow cylindrical (inner radius = 2.0 mm, outer radius = 4.0 mm) conductor carries a current of 24 A parallel to its axis. This current is uniformly distributed over a cross section of the conductor. Determine the magnitude of the magnetic field at a point that is 5.0 mm from the axis of the conductor.

• A) 0.96 mT
• B) 1.7 mT
• C) 0.55 mT
• D) 1.2 mT
• E) 0.40 mT

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