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Electrical resistance and conductance
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Explain why diamond is an electrical insulator and graphite is an electrical conductor.
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Electrical resistance and conductance
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A solid substance is dissolved in water to form a solution, a conductivity apparatus is immersed the bulb light up is ionic or covalent? water is added to the solution, what do you predict will happen when the conductivity apparatus is immersed in the sol
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Electrical resistance and conductance
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Why is water a poor conductor of electricity?
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Electrical resistance and conductance
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Is water a conductor or an insulator?
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Electrical resistance and conductance
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Which materials are the best thermal insulators?
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Electrical resistance and conductance
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Why is Styrofoam a superior insulator to a metal, such as stainless steel?
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Electrical resistance and conductance
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Is rubber an insulator or a conductor?
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Electrical resistance and conductance
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Explain the difference between an insulator, a conductor, and a semiconductor. Give an example of each to illustrate your comparison.
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Electrical resistance and conductance
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What does a superconductor ring do?
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Electrical resistance and conductance
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The materials with the lowest resistance are called: a. conductors b. superconductors c. semiconductors d. insulators
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Electrical resistance and conductance
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Describe the basic operating principle of a superconductor magnetic energy storage system (SMES).
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Electrical resistance and conductance
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What is the unit of electrical conductivity?
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Electrical resistance and conductance
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Why is carbon black more electrically conductive than activated carbon?
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Electrical resistance and conductance
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A small sheet of aluminium foil measuring 2 x 2 cm is charged by rubbing it on some plastic material. The charge on the small sheet of aluminium foil is then measured and found to be +Q. An uncharged sheet of gold foil measuring 4 x 4 cm is brought close
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Electrical resistance and conductance
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Is dielectric grease conductive?
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Electrical resistance and conductance
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What do electrical conductors and thermal conductors have in common?
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Electrical resistance and conductance
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What’s the difference between the electrical and thermal conductivity.
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