Magnetics 6 Question 22

22. A superconductor has TC(0)=100K. When a magnetic field of 7.5 T is applied, its TC decreases to 75K. For this material one can definitely say that when

(Note T= Tesla)

(a) B=5T,TC(B)=80K

(b) B=5T,75K<TC(B)<100K

(c) B=10T,75K<TC(B)<100K

(d) B=10T,TC(B)=70K

Match the Columns

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Solution:

  1. With increase in temperature, TC is decreasing.

TC(0)=100KTC=75K at B=7.5T

Hence, at B=5T,TC should lie between 75K and 100K. Hence, the correct option should be (b).



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