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er carries a Bl in the opp са de of the m

er carries a Bl in the opp са de of the m

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A very long cable made of a solid O 31 inner cylinder and a coaxial, cylindrical, outer shell with finite thickness. The inner cylinder carries a current 6|while the outer shell carries a current 31 in the opposite direction (see figure). What is the magnitude of the magnetic field at b <r < c? 61 31 а. 2 + 2ur 2. b. 2 2ur 631 2tr 2 1 + 2- (-b (²-b) С. H,31 d. 2ar 1 2-
Transcribed Image Text:A very long cable made of a solid O 31 inner cylinder and a coaxial, cylindrical, outer shell with finite thickness. The inner cylinder carries a current 6|while the outer shell carries a current 31 in the opposite direction (see figure). What is the magnitude of the magnetic field at b <r < c? 61 31 а. 2 + 2ur 2. b. 2 2ur 631 2tr 2 1 + 2- (-b (²-b) С. H,31 d. 2ar 1 2-
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