Answer: A metal cable has radius and is covered by insulation, so that the distance from
Chapter 4, Problem 68(choose chapter or problem)
A metal cable has radius and is covered by insulation, so that the distance from the center of the cable to the exterior of the insulation is . The velocity of an electrical impulse in the cable isv cr R2 lnr R where is a positive constant. Find the following limits and interpret your answers. (a) (b)
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