# © 2013 Pearson Education, Inc. Magnetohydrodynamic Drive.

## Presentation on theme: "© 2013 Pearson Education, Inc. Magnetohydrodynamic Drive."— Presentation transcript:

© 2013 Pearson Education, Inc. Magnetohydrodynamic Drive

© 2013 Pearson Education, Inc. Cycloidal Motion in Crossed E and B Middle curve is for ion starting at rest E B

© 2013 Pearson Education, Inc. Drift in Inhomogeneous B Field

© 2013 Pearson Education, Inc. Demo: Moving magnet near coil generates current

© 2013 Pearson Education, Inc. Electrical Generator

© 2013 Pearson Education, Inc. How Electricity Is Created From Fusion, Oil,...

© 2013 Pearson Education, Inc. Creating Electricity From Steam

© 2013 Pearson Education, Inc. Transcranial magnetic stimulation

© 2013 Pearson Education, Inc. 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.

© 2013 Pearson Education, Inc. A metal bar moves through a magnetic field. The induced charges on the bar are Motional EMF

© 2013 Pearson Education, Inc. A metal bar moves through a magnetic field. The induced charges on the bar are

An induced current flows clockwise as the metal bar is pushed to the right. The magnetic field points A. Up. B. Down. C. Into the screen. D. Out of the screen. E. To the right.

© 2013 Pearson Education, Inc. 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? A.There is a clockwise induced current in the loop. B.There is a counterclockwise induced current in the loop. C.There is no induced current in the loop.