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Exploring Magnetohydrodynamic Drives: Faraday's Law and Magnetic Resistance

Dive into Chapter 33 of Michael Faraday's principles on induction and Faraday's Law. Discover how moving magnets near coils create currents, leading to the creation of electricity from fusion, oil, and steam. Explore the concept of magnetic resistance bikes and how they utilize eddy currents. Unravel the mysteries of motional EMF and induced currents in magnetic fields.

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Exploring Magnetohydrodynamic Drives: Faraday's Law and Magnetic Resistance

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  1. Magnetohydrodynamic Drive

  2. Cycloidal Motion in Crossed E and B E B Middle curve is for ion starting at rest

  3. Drift in Inhomogeneous B Field

  4. Chapter 33: Induction and Faraday's Law Michael Faraday 1791-1867

  5. Demo: Moving magnet near coil generates current

  6. Electrical Generator

  7. How Electricity Is Created From Fusion, Oil, ...

  8. Creating Electricity From Steam

  9. Transcranial magnetic stimulation

  10. Magnetic Resistance Exercise Bike Magnetic resistance bikes are great example of eddy currents: you do work dragging eddy currents in a large Al wheel through two strong magnets, F = I L B.

  11. Motional EMF A metal bar moves through a magnetic field. The induced charges on the bar are

  12. A metal bar moves through a magnetic field. The induced charges on the bar are

  13. An induced current flows clockwise as the metal bar is pushed to the right. The magnetic field points • Up. • Down. • Into the screen. • Out of the screen. • To the right.

  14. The magnetic field is confined to the region inside the dashed lines; it is zero outside. The metal loop is being pulled out of the magnetic field. Which is true? There is a clockwise induced current in the loop. There is a counterclockwise induced current in the loop. There is no induced current in the loop.

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