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A long straight wire carries a current I. What is the magnetic field at a distance r from the wire?

Practice Questions

1 question
Q1
A long straight wire carries a current I. What is the magnetic field at a distance r from the wire?
  1. μ₀I/(2πr)
  2. μ₀I/(4πr)
  3. μ₀I/(8πr)
  4. μ₀I/(πr)

Questions & Step-by-step Solutions

1 item
Q
Q: A long straight wire carries a current I. What is the magnetic field at a distance r from the wire?
Solution: The magnetic field around a long straight wire is given by B = μ₀I/(2πr).
Steps: 0

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