Making conducting paper for field mapping experiments

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sivaram
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Can I make conducting paper/carbonized paper on my own for use in in an undergrad EM lab? Are there alternatives for experiments that help learn field mapping? How can I rig up and electrolytic tank that may serve my purpose?
 

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There are conducting inks which are used for this purpose I have used silver inks for mapping odd conductor shapes for IC design-- to be honest I have no idea of their accuracy which depends on application ( physical by brush ), but they certainly give an idea where the hot spots are. I cannot comment on tanks they sound to me to be a lot more tricky but that's just my lack of familiarity.
Ray.