Solid State Physics-Elements of Superconductivity (GATE (Graduate Aptitude Test in Engineering) Physics): Questions 1 - 3 of 5

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Question number: 1

» Solid State Physics » Elements of Superconductivity » Type-I and Type-II Superconductors

Appeared in Year: 2015

MCQ▾

Question

Which one of the following represents the electron occupancy for a superconductor in its normal and superconducting states?

Choices

Choice (4) Response

a.

The electron occupancy: Choice A

The Electron Occupancy: Choice A

In figure the electron occupancy for normal state and superconducting state are given by graphs.

b.

The electron occupancy: Choice B

The Electron Occupancy: Choice B

In figure the electron occupancy for normal state and superconducting state are given by graphs.

c.

The electron occupancy: Choice C

The Electron Occupancy: Choice C

In figure the electron occupancy for normal state and superconducting state are given by graphs.

d.

The electron occupancy: Choice D

The Electron Occupancy: Choice D

In figure the electron occupancy for normal state and superconducting state are given by graphs.

Question number: 2

» Solid State Physics » Elements of Superconductivity » Type-I and Type-II Superconductors

Appeared in Year: 2013

MCQ▾

Question

Considering the BCS theory of superconductors, which one of the following statements is NOT CORRECT?

(Equation is the Planck’s constant and Equation is the electronic charge)

Choices

Choice (4) Response

a.

Presence of Meissner effect

b.

Quantization of magnetic flux in superconducting ring in the unit of Equation

c.

Different critical temperature for isotopes

d.

Presence of energy gap at temperature below the critical temperature

Question number: 3

» Solid State Physics » Elements of Superconductivity » Type-I and Type-II Superconductors

Appeared in Year: 2007

MCQ▾

Question

Variation of electrical resistivity Equation with temperature Equation of three solid is sketched (on different scales) in the figure, as curves Equation and Equation .

Which one of the following states describes the variations most appropriately?

Curves of Resistivity vs Temperature

Curves of Resistivity vs Temperature

In figure curve of resistivity vs temperature is shown.

Choices

Choice (4) Response

a.

Equation is for a superconductor, and R for a semiconductor.

b.

Equation is for a superconductor, and Equation for a conductor.

c.

Equation is for a superconductor, and Equation for a conductor.

d.

Equation is for a superconductor, and Equation for a conductor.

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