WFU Department of Physics Wake Forest University

 

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WFU Physics Lecture Demonstrations

Eddy Current Plate

PIRA 5K20.11

Image:

Photo of Demo

Description:

A copper plate is completely cooled to LN2 temp. A large magnet that drops on the tabletop with a 'thunk' will gently lower into position with barely a sound on the copper plate.

Recipe and
Location:

Copper Plate
Large Magnet
Tongs
Dewar

Video:

Streaming Video:

None

MPG Video:

None

Real Video:

None

Notes:

The copper must be COMPLETELY cooled. It will take a good 5 min for the LN2 to stop boiling once the plate is added.

 

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100 Olin Physical Laboratory
Wake Forest University
Winston-Salem, NC 27109-7507
Phone: (336) 758-5337, FAX: (336) 758-6142
E-mail:
wfuphys@wfu.edu