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Author Question: A long straight wire (diameter = 2.0 mm) carries a current of 30 A. What is the magnitude of the ... (Read 91 times)

kodithompson

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on: Jul 28, 2018
A long straight wire (diameter = 2.0 mm) carries a current of 30 A. What is the magnitude of the magnetic field 2.5 mm from the axis of the wire?
 a. 3.2 mT
  b. 2.8 mT
  c. 2.4 mT
  d. 3.6 mT
  e. 3.0 mT

Question 2

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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Marked as best answer by a Subject Expert

SeanoH09

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Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

A


kodithompson

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  • Posts: 566
Reply 2 on: Jul 28, 2018
Excellent

triiciiaa

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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