A perfect insulator (which does not really exist) would have an infinitely high resistance. Good insulators provide very high resistance to current flow, on the order of tens of megohms and up.
In the simplest case, that would be resistance - but there is also another type of opposition (only relevant for AC) called reactance. The combined effect of resistance and reactance is called impedance.
the resistance is depends on the type of the metal and ith length
one insulator unit can bare 11kV. such that 66kV tx line needs 6 insulator units.
Variable resistance.
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it depends what type of insulator youre talking about. wood is a good thermal insulator and rubber is a good electrical insulator A perfect vacuum is the best insulator.
it depends what type of insulator youre talking about. wood is a good thermal insulator and rubber is a good electrical insulator A perfect vacuum is the best insulator.
Depends on the type of rubber and its composition. Rubber generally is an insulator
of course beause it is a type of foam
Copper is not a good insulator because it is a conductor of electricity, allowing electric current to flow through it easily. Insulators, on the other hand, have high resistance to the flow of electricity. This is why copper is commonly used as a conductor in electric wires instead of an insulator.
Butyl rubber is an insulator, popular in covering wire.
Don't know if it is the best but Newspaper is a very good insulator and generally easy and cheap or free to get. Cardboard is alo very good.
Styrofoam is the best material to use as an insulator. Styrofoam is the best insulator, since the temperature of the water in the styrofoam glass decreased the least. If you mean what "state" of matter is the best insulator then you're probably looking for gas as the answer. The state of matter that is best as a thermal insulator is gas.
Plastic is generally an insulator, so a plastic comb cannot carry energy.
Insulators are very good at holding static electricity. I hope this helped!
yes, its an insulator. its a type of insulator used for wires, cables, etc
Plexiglass is a poor insulator compared to wood. Wood is a natural insulator due to its cellular structure and higher density. Plexiglass, being a type of plastic, has lower thermal resistance properties and therefore is not as effective in insulation.