What will be the value of critical current (in A) through a wire that – McqOptions

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1.	What will be the value of critical current (in A) through a wire that has a diameter of 4 mm at 10 K?If the critical temperature of the material is 20 K and the magnetic field strength is 2 × 103 A-m-1
A.	6.28
B.	18.84
C.	21.54
D.	22.68
Answer» C. 21.54

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