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This physics video tutorial provides a basic introduction into the hall effect. It explains how a hall effect sensor can be used to measure a magnetic field. It explains how to calculate the electric field across a conductor perpendicular to the current, how to determine the magnetic field, how to calculate the drift velocity of the electrons and the charge density given the hall emf induced by the magnetic field and the current flowing through the material. Whenever electrons flow through a conductor in the presence of a magnetic field, they began to drift to one side of the conductor creating a hall emf with an electric field that is perpendicular to the direction of the current. This hall emf can be used to measure the strength of a magnetic field. This video contains plenty of examples and practice problems. Magnetic Force on a Current Carrying Wire: https://www.youtube.com/watch?v=nv28Cp-ILJ0 Magnetic Force on a Moving Charge: https://www.youtube.com/watch?v=7MBawzone30 The Homopolar Motor: https://www.youtube.com/watch?v=6Oj4qvCR6ow The Lorentz Force: https://www.youtube.com/watch?v=6ThH8IpsqAA Magnetic Field of a Current Carrying Wire: https://www.youtube.com/watch?v=wZlHLHnZSRg ___________________________________ Magnetic Sensors - The Reed Switch: https://www.youtube.com/watch?v=pw9_xmbFi6E Magnetic Force Between Two Parallel Wires: https://www.youtube.com/watch?v=8T_dP7Oq620 Ampere's Law - Magnetic Field of a Solenoid: https://www.youtube.com/watch?v=lLQQjwuqdeg Magnetic Field of a Toroidal Solenoid: https://www.youtube.com/watch?v=XWtscd-IoDU Magnetic Field of a Moving Charge: https://www.youtube.com/watch?v=CXChim2gOzs ____________________________________ Torque on a Loop - Magnetic Dipole Moment: https://www.youtube.com/watch?v=-l-aajUS_Ik Magnetic Flux: https://www.youtube.com/watch?v=y30ATrKpwpU Faraday's Law of Electromagnetic Induction: https://www.youtube.com/watch?v=LDOa7UdfcMQ Lenz's Law - Induced Current: https://www.youtube.com/watch?v=HhFZfWLl-P0 _______________________________________ Final Exams and Video Playlists: https://www.video-tutor.net/ Full-Length Videos and Worksheets: https://www.patreon.com/MathScienceTutor/collections
