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Lecture 20 – Forces on Currents

Lecture 20 – Forces on Currents. 26.6 Magnetic Forces on Current Carrying Conductors. Magnitude of the force on a current segment of length L perpendicular to a magnetic field. Magnetic Fields Exert Forces on Currents. Slide 24-37. Forces between Currents.

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Lecture 20 – Forces on Currents

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  1. Lecture 20 – Forces on Currents 26.6 Magnetic Forces on Current Carrying Conductors

  2. Magnitude of the force on a current segment of length L perpendicular to a magnetic field Magnetic Fields Exert Forces on Currents Slide 24-37

  3. Forces between Currents Magnetic force between two parallel current-carrying wires Slide 24-38

  4. Forces between Current Loops Slide 24-40

  5. A Current Loop Acts like a Bar Magnet Slide 24-41

  6. Homework due today • Problems 24: CQ10, MC33, 22, 25, 26, 29, 31, WB 24: 16-22 • Due Wednesday: Read 24: 7-8 Magnetic forces on magnetic dipoles and MRI • Problems: 24: 32, 34, 37

  7. Magnetic Fields Exert Torques on Current Loops Slide 24-42

  8. The Torque on a Dipole in a Magnetic Field Slide 24-43

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