Lightboxes

Image 1 of 1
INDUCED EMF: ALUMINUM RINGS ON FIELD GENERATOR<br />
Solid Ring Floats, Cut Ring Doesn't<br />
The coil is driven by AC, so the magnetic field is constantly changing, inducing an EMF in the rings. The resulting current in the solid ring produces a magnetic field that opposes the generator field. The cut ring has no current, thus no magnetic field.

Fphoto-44189801B-2RM.jpg

INDUCED EMF: ALUMINUM RINGS ON FIELD GENERATOR
Solid Ring Floats, Cut Ring Doesn't
The coil is driven by AC, so the magnetic field is constantly changing, inducing an EMF in the rings. The resulting current in the solid ring produces a magnetic field that opposes the generator field. The cut ring has no current, thus no magnetic field.

Copyright:© 1998 Richard Megna - Fundamental Photographs

Search for Keywords:

ac
alternating current
apparatus
comparison
demonstration
electricity
electromagnetic
electromagnetic field
emf
experiment
field
field generator
generator
lab
laboratory
levitation
maglev
magnetic field
Magnetism
physics
science
vertical
Richard Megna