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Lecture 13: June 19 th 2009

Lecture 13: June 19 th 2009. Physics for Scientists and Engineers II. Ampere’s Law. Top View. Ampere’s Law. Top View. Ampere’s Law. Ampere’s Law. Top View. Ampere’s Law. Example Application of Ampere’s Law. I 2. I 1. Example Application of Ampere’s Law. Preventing Pitfalls.

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Lecture 13: June 19 th 2009

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  1. Lecture 13: June 19th 2009 Physics for Scientists and Engineers II Physics for Scientists and Engineers II , Summer Semester 2009

  2. Ampere’s Law Top View Physics for Scientists and Engineers II , Summer Semester 2009

  3. Ampere’s Law Top View Physics for Scientists and Engineers II , Summer Semester 2009

  4. Ampere’s Law Physics for Scientists and Engineers II , Summer Semester 2009

  5. Ampere’s Law Top View Physics for Scientists and Engineers II , Summer Semester 2009

  6. Ampere’s Law Physics for Scientists and Engineers II , Summer Semester 2009

  7. Example Application of Ampere’s Law I2 I1 Physics for Scientists and Engineers II , Summer Semester 2009

  8. Example Application of Ampere’s Law Physics for Scientists and Engineers II , Summer Semester 2009

  9. Preventing Pitfalls Physics for Scientists and Engineers II , Summer Semester 2009

  10. Preventing Pitfalls Physics for Scientists and Engineers II , Summer Semester 2009

  11. A Long Solenoid (Wire wound in the form of a helix) Physics for Scientists and Engineers II , Summer Semester 2009

  12. A Long Solenoid (Wire wound in the form of a helix) Physics for Scientists and Engineers II , Summer Semester 2009

  13. Problem 33 in the book z x Physics for Scientists and Engineers II , Summer Semester 2009

  14. Problem 33 in the book z x Physics for Scientists and Engineers II , Summer Semester 2009

  15. Gauss’s Law in Magnetism Physics for Scientists and Engineers II , Summer Semester 2009

  16. Gauss’s Law Comparison Isolated magnetic monopoles have never been found. Electric flux through closed surface is proportional to the amount of electric charge inside (electric monopoles). Physics for Scientists and Engineers II , Summer Semester 2009

  17. Magnetism in Matter We now know how to build “electromagnets” (using electric current through a wire). We also found that a simple current loop produces a magnetic field / has a magnetic dipole moment. How about the “current” produced by an electron running around a nucleus? Let’s use a classical model (electron is a point charge orbiting around a positively charged nucleus. Orbital angular momentum of electron + - direction of motion of electron The tiny current loop produces a magnetic moment Physics for Scientists and Engineers II , Summer Semester 2009

  18. Magnetism in Matter + - L = “orbital angular momentum” Physics for Scientists and Engineers II , Summer Semester 2009

  19. Quantization Physics for Scientists and Engineers II , Summer Semester 2009

  20. Spin Physics for Scientists and Engineers II , Summer Semester 2009

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