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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. - PowerPoint PPT Presentation
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Lecture 20 – Forces on Currents
26.6 Magnetic Forces on Current Carrying Conductors
Magnetic Fields Exert Forces on Currents
Fwire ILBMagnitude of the force on a current segment of length L perpendicular to a magnetic field
Slide 24-37
Forces between Currents
Fparallel wires 0LI1I2
2d
Slide 24-38
Magnetic force between two parallel current-carrying wires
Forces between Current Loops
Slide 24-40
A Current Loop Acts like a Bar Magnet
Slide 24-41
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
Magnetic Fields Exert Torques on Current Loops
Slide 24-42
The Torque on a Dipole in a Magnetic Field
IA B sin
Slide 24-43
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