A material behaves like a normal conductor for the last time

A material maintains its superconductivity for the last time 

A material has its mixed normal-superconducting state

A material transforms from a superconducting state to an Insulating state

the resistivity of a superconducting metal drops to zero

the current flowing through a superconductor is minimum

the magnetic field inside a superconductor becomes constant

none of these

$\mathrm{B}=0 \mathrm{at} \mathrm{T}>{\mathrm{T}}_{\mathrm{c}}$

$\mathrm{B}=0 \mathrm{at} \mathrm{T}\le {\mathrm{T}}_{\mathrm{c}}$

$\mathrm{B}\ne 0 \mathrm{at} \mathrm{T}\ge {\mathrm{T}}_{\mathrm{c}}$

$\mathrm{div} \overrightarrow{\mathrm{B}}=0 \mathrm{at} \mathrm{T}={\mathrm{T}}_{\mathrm{c}}$

diamagnetic material

ferromagnetic material

superconducting material

paramagnetic material

$\mathrm{\lambda }=\sqrt{\frac{\mathrm{m}}{{\mathrm{\mu }}_0 {\mathrm{n}}_{\mathrm{s}} {\mathrm{q}}^2}}$

$\mathrm{\lambda }=\sqrt{\frac{{\mathrm{n}}_{\mathrm{s}}}{{\mathrm{\mu }}_0 \mathrm{m} {\mathrm{q}}^2}}$

$\mathrm{\lambda }=\sqrt{\frac{{\mathrm{\mu }}_0}{{\mathrm{n}}_{\mathrm{s}} \mathrm{m} {\mathrm{q}}^2}}$

$\mathrm{\lambda }=\sqrt{\frac{{\mathrm{q}}^2}{{\mathrm{n}}_{\mathrm{s}} \mathrm{m} {\mathrm{\mu }}_0}}$

two electrons moving in the same direction

two electrons with resultant spin-zero

two electrons connected like a boson

two electrons connected through a phonon

decreases

increases

remains same

shows abrupt change

208.7 u

199.5 u

192.3 u

203.4 u