Overview of Lecture

• Fundamental Law for Calculating Magnetic Field

  • Biot-Savart Law (“brute force”)
  • Ampere’s Law (“high symmetry”)

• Example: Calculate Magnetic Field of ¥ Straight Wire

  • from Biot-Savart Law
  • from Ampere’s Law

• Calculate Force on Two Parallel Current-Carrying Conductors

Text Reference: Chapter 29.1-4

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