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K1-21. Torque On Current Loop In Magnetic Field
Purpose
To demonstrate that there is a torque on a current loop in a magnetic field.
Equipment
Torque on coil in magnetic field apparatus.
Images
Description
A few-turn coil is positioned in the magnetic field of a small horseshoe magnet as shown in the photograph. Pushing the switch connects the battery to the coil, passing electrical current through the coil and creating the torque, which is clearly visible as rotation of the coil about its axis. Reversing the coil leads reverses the direction of the torque.
References
Lev Vaidman, Torque and force on a magnetic dipole, AJP 58, 978-983 (1990). ◙V. Hnizdo, Comment on "Torque and force on a magnetic dipole" by Lev Vaidman [AJP 58, 978-983 (1990)], AJP 60,◙279-280 (1992).
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See pagesk1. forces on moving charges
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See pagesk2. electromagnetic induction
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See pagesk3. transformers
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See pagesk4. motors & generators
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See pagesk5. electrical properties of matter
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See pagesk6. electric circuits & instruments
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See pagesk7. rlc circuits
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See pagesk8. electromagnetic waves
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See pagesk1. forces on moving charges
-
See pagesk2. electromagnetic induction
-
See pagesk3. transformers
-
See pagesk4. motors & generators
-
See pagesk5. electrical properties of matter
-
See pagesk6. electric circuits & instruments
-
See pagesk7. rlc circuits
-
See pagesk8. electromagnetic waves