The blank is probably "resists." If a substance or object is a conductor, that means that it allows electric current (i.e., electrons) to flow with relatively little impedance. That is, less electrical energy is lost to heating of the material, and the potential difference across the path is small. If an object is not a conductor, it is either a resistor or an insulator. A resistor allows electrical current to flow, but a significant potential difference develops across the object, which heats up as well. An insulator prevents current from flowing at all, because it has very high resistance. Rubber is actually an insulator. However, you wouldn't normally say that something "insulates electricity." You would just say that it "is an insulator."
2007-12-18 00:01:22
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answer #1
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answered by DavidK93 7
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Rubber is made up of organic compounds that have all covalent bonds. Covlaent bonds have commpletely bonded electrons. Very few organic comounds conduct electricity. For conduction of electricity the material should be ionized or should have free electrons. Theionized compounds such as sodium chloride in its molten state or in solution in water is a very good conductor of electricity ( as good as any metal). Pure water is a poor conductor of electricity but when ionic compounds are dissolved in it it becomes a good conductor of electricity.
I have no idea what you mean by blank but Martin Blank is an editor of a book on electricity and magnetism in biology and medicine. Hope my answer helps.
2007-12-18 00:33:58
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answer #2
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answered by Venkateswara Rao K 2
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Metals have free electronics which can be displaced with negligibly small force. Flow of electrons constitutes current. if there is a current flow in the material, that material is a conductor. The difference between one conductor and another is the difference in the resistance they offer to the current flow. Rubber does not have free electrons for conducting electricity.Such materials are called insulators.
2007-12-18 02:19:40
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answer #3
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answered by eematters 4
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There was no perfect material in the world that 100% cannot conduct electricity. Any material like glass,rubber,ceramic pass electricity as the voltage arise high enough.Best insulation is vacuum. Next is glass.
2016-05-24 21:24:41
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answer #4
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answered by ? 3
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because metals have mobile free electrons so when connected to any source,electric field is established across it ends and the electrons flow in one direction.however,the is nomobile free electron and since its an insulator, it has a wide forbidden gab and hence no electron in the conductance band
2007-12-18 00:19:14
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answer #5
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answered by scholar 1
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metal conducts electricity but rubber does not conduct electricity (insulator )
conducts means that it allows to pass throught something
eg. metal can allow electricity to pass throught it but rubber does not allow.
2007-12-18 00:04:28
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answer #6
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answered by hamood . J 2
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resists
conduct means aborbs or to attract
2007-12-18 00:03:19
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answer #7
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answered by bobble head 3
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