MadSci Network: Physics

Re: What are some methods of investigating differences in electric fields?

Date: Thu Apr 1 12:24:50 2004
Posted By: Gus Calabrese aka puppet boy, Design Engineer
Area of science: Physics
ID: 1076525036.Ph

There are a number of ways to investigate electric fields

If you go to you will see a list of 
experiments with very short descriptions of how they are set up.  You will not see detailed 
instructions.  It will give you an idea of approaches.

Edmund Scientific has some great supplies you might look into.   shows some Temperature Sensitive 
Liquid Crystal Sheets shows some Thermal Liquid Crystal 
Paints which are sensitive to temp.

I believe you should be able to connect a variable voltage to your carbon paper and lay some 
Temperature Sensitive Liquid Crystal Sheets over the carbon paper to show temp changes based 
on joule heating.  This heating would be analogous to the field potentials.

Be sure to get advice from your instructors regarding safe use of electrical apparatus.

Best of Luck

Gus S Calabrese
Denver, CO

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