|MadSci Network: Physics|
I am going to be starting an investigation into differences in electric fields soon and i need to come up with some methods to do so. In school, we have done simple experiments in mapping equipotential lines using carbon paper and crocodile clips as electrodes. The clips were attached at opposite sides of the carbon paper and using a probe connected to a multimeter lines of equal voltage were found. To plot them we just pressed the carbon paper onto a piece of blank paper underneath. However, this was really boring and I want to use a more interesting method. I had found a web page describing use of conductive glass and heat sensitive liquid crystals. Unfortunately, when I returned to the page ready to get further instructions it was gone. All I remember about the experiment was something about coating the glass with the liquid crystals and being able to see electric fields lines or equipotential lines. Could you please shed some light on this method, and if you could, suggest some new methods?
Re: What are some methods of investigating differences in electric fields?
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