GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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conduct electricity at low temperature
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conduct electricity at high temperatures
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offer high resistance to the flow of current
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offer no resistance to the flow of electricity
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Detailed explanation-1: -Super conductors are substances that provide no resistance to the flow of electrons. No resistance means no heat production.
Detailed explanation-2: -Superconductors are solids that at low temperatures exhibit zero resistance to the flow of electrical current, a phenomenon known as superconductivity.
Detailed explanation-3: -: In a superconductor, the electric resistance is equal to zero. This is why an electric current can circulate forever in a superconducting ring even when the battery has been unplugged!
Detailed explanation-4: -When a substance conducts electricity without any resistance, it is called a superconductor while superconductivity is a phenomenon of exactly zero electrical resistance and expulsion of magnetic fields occurring in certain materials when cooled below a characteristic critical temperature. Was this answer helpful?
Detailed explanation-5: -Some of the popular examples of superconductors are aluminium, magnesium diboride, niobium, copper oxide, yttrium barium and iron pnictides. These substances superconduct at temperatures below the critical temperature.