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

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

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

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Forces between Current Loops Slide 24-40

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

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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

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Magnetic Fields Exert Torques on Current Loops Slide 24-42

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

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