Condensed Matter Physics-Superconductivity [CSIR (Council of Scientific & Industrial Research) Physical Sciences]: Questions 1 - 4 of 4

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Passage

A flux quantum (fluxoid) is approximately equal to . A type II superconductor is placed in a small magnetic field, which is then slowly increased till the field starts penetrating the superconductor. The strength of the field at this point is gauss. (June)

Question 1 (1 of 2 Based on Passage)

Appeared in Year: 2016

Question MCQ▾

The penetrate depth of this superconductor is –

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Question 2 (2 of 2 Based on Passage)

Appeared in Year: 2016

Question MCQ▾

The applied field is further increased till superconductivity is completely destroyed. The strength of the field is now . The correlation length of the superconductor is:

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Question 3

Appeared in Year: 2022

Question MCQ▾

Lead is superconducting below and has a critical magnetic field tesla close to . At the critical current that flows through a long lead wire of radius is closest to

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Question 4

Appeared in Year: 2022

Question MCQ▾

To measure the height of a column of liquid helium in a container, a constant current is sent through an wire of length , as shown in the figure. The normal state resistance of the wire is. If the superconducting transition temperature of is , then the measured voltage is best described by the expression

Measure the Height H of a Column of Liquid Helium

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