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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 101 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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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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Reply 2 on: Jul 28, 2018
Gracias!

xiazhe

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Reply 3 on: Yesterday
Excellent

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