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None of those materials will conduct electricity. They are therefore called insulators. However if a sufficiently high voltage is applied across an insulator it is possible that it will be damaged. This is known as the "breakdown voltage". The amount of voltage needed to cause breakdown depends mainly on its physical and chemical composition and partly on its actual thickness. For the materials stated - and provided that their surfaces are not damp or wet - the breakdown voltage is probably many thousands of volts. As can be imagined, when an insulator breaks down there will most probably be a flash of light, a loud bang and lots of smoke, maybe even a fire, so these kinds of things can only be tested safely in a properly equipped lab or maybe at your local Fire Station! The speed of electric travel thru a 'paper' capacitor or a 'plastic' capacitor is about the same (not familiar with a 'yarn' capacitor?). The main differences are the dielectric strengths of the materials which means HOW THICK do the materials have to be before the electricity will break thru it. If you meant to ask what the wire covering (yes, wire used to be covered with yarn!) does to the speed, the covering has no affect on speed.

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โˆ™ 2008-03-04 17:43:26
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Q: Will electricity travel through the fastest through plastic paper or yarn?
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