Instructions

Electrical resistance of certain materials, known as superconductors, changes abruptly from a nonzero value to zero as their temperature is lowered below a critical temperature $$T_c(0)$$. An interesting property of superconductors is that their critical temperature becomes smaller than $$T_c(0)$$ if they are placed in a magnetic field, i.e., the critical temperature $$T_c(B)$$ is a function of the magnetic field strength B. The dependence of $$T_c(B)$$ on B is shown in the figure.

Question 73

In the graphs below, the resistance R of a super conductor is shown as a function of its temperature T for two different magnetic fields $$B_1$$ (solid line) and $$B_2$$ (dashed line). If $$B_2$$ is larger than $$B_1$$, which of the following graphs shows the correct variation of R with T in these fields ?

Create a FREE account and get:

Free JEE Advanced Previous Papers PDF
Take JEE Advanced paper tests

CAT Quant Questions | CAT Quantitative Ability

CAT Probability, Combinatorics Questions CAT Data Sufficiency Questions CAT Averages, Ratio and Proportion Questions CAT Quadratic Equations Questions CAT Time Speed Distance Questions

CAT DILR Questions | LRDI Questions For CAT

CAT Games and Tournamnents Questions CAT Quant Based DI Questions CAT Truth Lie Concept Questions CAT Puzzles Questions CAT Data Interpretation Basics Questions

CAT Verbal Ability Questions | VARC Questions For CAT

CAT Critical Reasoning Questions CAT Para Summary Questions CAT Miscellaneous Questions CAT Vocabulary Questions CAT Para Jumbles Questions

Follow us on

Boost your Prep!

Download App