WFU Department of Physics Wake Forest University

 

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WFU Physics Lecture Demonstrations

Electrostatic Ruler and Cloth

PIRA 5A10.37

Image:

Photo of Demo

Description:

A charged plastic ruler is tied to a swivel with thread, and hung from a long wood rod (to reduce bleed off, don't use metal). A charged rubber rod will repel an end and the ruler will pivot.

Recipe and
Location:

Ruler on Hanging Pivot
Rubber Rod
Wool
Table Rod
Right Angle Clamp
Wooden Rod

Video:

Streaming Video:

None

MPG Video:

Static Ruler

Real Video:

Static Ruler

Notes:

All the electrostatic demos work better in dry weather (winter).

 

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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