Faraday's Cage - Radio

 

 


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 Code Number :   5B20.35  

Disclaimer:

Reprinted by permission of Dick Berg, University of Maryland, for use on this website.

The demonstrations contained and referenced herein are listed for the purposes of cataloging and describing physics demonstrations which should be conducted only under the direction of a trained instructional support professional or physicist. These demonstrations are not presented for the purpose of being conducted by persons unconnected to this Facility and/or persons not consulting with or being supervised by the recognized instructional support professional or physicist and his/her staff. The University is responsible only for those demonstrations carried out using its own equipment using established safety and scheduling policies, and bears no responsibility for those choosing to use this source material for their own purposes. All demonstrations described and contained herein are public domain, and can also be found in reference materials in libraries, bookstores, and electronic sources.

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Condition :   Good   
Principle :   Electrostatics  
Area of Study :  Electricity & Magnetism  
Equipment :   Faraday's Cage, Transistor Radio. 

Procedure :   Put the radio in the Faraday's cage. When the radio is placed inside the Faraday's cage it will be unable to receive radio signals.

NOTE:  Grounding the base of the cage may help improve the radio demo. 

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   References

Zhu E-qing,  "Electromagnetic Shielding,"  TPT, Vol. 27, # 9, p. 686, (Dec. 1989).

Edward J. Carlone, Hugh D. Young, "Radio and TV Reception", TPT, Vol. 22, # 3, Mar. 1984, p. 180.

 

Robert Ehrlich,  "Shielding a Radio,"  Turning the World Inside Out, p. 174-175.

Brian Jones and Matt Fackelman,  "Radio Shack - Stopping Electromagnetic Waves,"  Don't Forget the Duct Tape! - The How and Why of the Experiments of the Little Shop of Physics - A Work in Progress, p. 97.



Mail Questions and Comments to:  Dale Stille