Question

Hey........
Comprehension Type Question....
SUPERCONDUCTORS.....HELP......Explanation required+Medal!!

Answer 1

Questions Based on that!!........

Answer 2

@hank67 @Harindu @Ladapoo @Compassionate @Coolsector @CGGURUMANJUNATH @skullpatrol

Answer 3

Medals 0
@terenzreignz @yamyam70 @ajprincess @skullpatrol @stgreen @souvik @shkrina @dan815 @dinmosiaren @ganeshie8 @hba @Harindu @Kainui @khadeeja @Ladapoo @Compassionate @CGGURUMANJUNATH @Brookeluda @madrockz @marylou004

Answer 4

@bahrom7893

Answer 5

@abb0t

Answer 6

@Preetha

Answer 7

@King

Answer 8

I have an answer one minute.

Answer 9

Whew.........Finally.........Take ur time

Answer 10

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. It was discovered by Dutch physicist Heike Kamerlingh Onnes on April 8, 1911 in Leiden. Like ferromagnetism and atomic spectral lines, superconductivity is a quantum mechanical phenomenon. It is characterized by the Meissner effect, the complete ejection of magnetic field lines from the interior of the superconductor as it transitions into the superconducting state. The occurrence of the Meissner effect indicates that superconductivity cannot be understood simply as the idealization of perfect conductivity in classical physics.

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Answer 11

No that's not it

Answer 12

Explanation[edit]The electrical resistivity of a metallic conductor decreases gradually as temperature is lowered. In ordinary conductors, such as copper or silver, this decrease is limited by impurities and other defects. Even near absolute zero, a real sample of a normal conductor shows some resistance. In a superconductor, the resistance drops abruptly to zero when the material is cooled below its critical temperature. An electric current flowing through a loop of superconducting wire can persist indefinitely with no power source.[1]

In 1986, it was discovered that some cuprate-perovskite ceramic materials have a critical temperature above 90 K (−183 °C).[2] Such a high transition temperature is theoretically impossible for a conventional superconductor, leading the materials to be termed high-temperature superconductors. Liquid nitrogen boils at 77 K, and superconduction at higher temperatures than this facilitates many experiments and applications that are less practical at lower temperatures. In conventional superconductors, electrons are held together in Cooper pairs by an attraction mediated by lattice phonons. The best available model of high-temperature superconductivity is still somewhat crude. There are currently two main hypotheses – the resonating-valence-bond theory, and spin fluctuation which has the most support in the research community.[3] The second hypothesis proposed that electron pairing in high-temperature superconductors is mediated by short-range spin waves known as paramagnons.[4][5]

Answer 13

I have posted a comprehension...........Pls answer the questions for that comprehension!!

Answer 14

here

Answer 15

here are the questions based on that Paragraph!!

Answer 16

It seems like math -.-

Answer 17

which m not gtin......Help will be appreciated!!

Answer 18

If it's comprehension go to writing or English not chemistry.

Answer 19

I'm going back to music!

Answer 20

What is the question?

Answer 21

posted already