The elements which become superconducting at extremely low temperatures are
A. Good conductors at room temperature
B. Ferromagnetic at room temperature
C. Relatively poor conductors at room temperature
D. Insulators at room temperature
Answer: Option C
Related Questions on Materials and Components
For making a capacitor it is better to have a dielectric having
A. High permittivity
B. Low permittivity
C. Permittivity same as that of air
D. Permittivity which is neither high nor low
As the viscosity of a liquid increases, the relaxation time
A. Remains constant
B. Increases
C. Decreases
D. First decreases then increases
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