as Electrical resistance of certain materials known superconductors changes abruptly from a non zero value...
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as Electrical resistance of certain materials known superconductors changes abruptly from a non zero value to zero as their temperature is lowered below a critical of An interesting property temperature Tc 0 superconductors is that their critical temperature becomes smaller than Tc 0 if they are placed in a magnetic field i e the critical temperature Te B is a function of the magnetic field strength B The dependence of Te B on B is shown in 2010 the figure a c Tc B A 6 In the graphs below the resistance R of a superconductor is shown as a function of its temperature T for two different magnetic fields B solid line and B dashed line If B is larger than B which of the following graphs shows the correct variation of R with T in these fields R B21 Tc 0 B B b d R B2 B B B2
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