Materials and Components The elements which become superconducting at extremely low temperatures are Ferromagnetic at room temperature Relatively poor conductors at room temperature Insulators at room temperature Good conductors at room temperature Ferromagnetic at room temperature Relatively poor conductors at room temperature Insulators at room temperature Good conductors at room temperature ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Piezoelectricity means the slight change in dimensions of a specimen when an electric field is applied. True False True False ANSWER DOWNLOAD EXAMIANS APP
Materials and Components An atom of a rare gas is placed is an electric field E. Then The nucleus will be shifted in the direction of E by an amount which is independent of E. The nucleus will not be shifted. The nucleus will be shifted in a direction opposite to that of E. The nucleus will be shifted in the direction of E by an amount which is proportional to E. The nucleus will be shifted in the direction of E by an amount which is independent of E. The nucleus will not be shifted. The nucleus will be shifted in a direction opposite to that of E. The nucleus will be shifted in the direction of E by an amount which is proportional to E. ANSWER DOWNLOAD EXAMIANS APP
Materials and Components For making a capacitor it is better to have a dielectric having Low permittivity Permittivity same as that of air Permittivity which is neither high nor low High permittivity Low permittivity Permittivity same as that of air Permittivity which is neither high nor low High permittivity ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The phenomenon of dielectric hysteresis occurs with DC AC Both AC and DC None of these DC AC Both AC and DC None of these ANSWER DOWNLOAD EXAMIANS APP
Materials and Components At room temperature the number of conducting electrons in an intrinsic semiconductor Is small as compared to the number of valence electrons Is a very small fraction of the number of valence electrons Is almost equal to the number of valence electrons Is about half the number of valence electrons Is small as compared to the number of valence electrons Is a very small fraction of the number of valence electrons Is almost equal to the number of valence electrons Is about half the number of valence electrons ANSWER DOWNLOAD EXAMIANS APP
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