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Lecture 27: Magnetic Force, Torque, Circular M otor and the Hal l Effect

Lecture 27: Magnetic Force, Torque, Circular M otor and the Hal l Effect. Magnetic force on parallel current segments. (attractive forces). Current loop in a constant B field. Torque about midline 00:. (view from the baseline loop). General Case:. Circular Motion – Force due to B on qv.

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Lecture 27: Magnetic Force, Torque, Circular M otor and the Hal l Effect

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  1. Lecture 27: Magnetic Force, Torque, Circular Motor and the Hall Effect Magnetic force on parallel current segments (attractive forces)

  2. Current loop in a constant B field Torque about midline 00: (view from the baseline loop)

  3. General Case:

  4. Circular Motion – Force due to B on qv

  5. Circular Motion – Force due to B on qv At P1: At P2:

  6. Hall Effect: Determine the sign of charge carriers If carriers have + charges:

  7. If carriers have – charges: Determination of v:

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