Materials and Components Ferrimagnetic materials have anti parallel orientation of equal moments of permanent dipoles. False True False True ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The fact that domains exhibits spontaneous magnetisation is Curie-Weiss law Boltzmann’s statistics First hypothesis is of Curie Second hypothesis is of Weiss Curie-Weiss law Boltzmann’s statistics First hypothesis is of Curie Second hypothesis is of Weiss ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The elements which become superconducting at extremely low temperatures are Ferromagnetic at room temperature Insulators at room temperature Good conductors at room temperature Relatively poor conductors at room temperature Ferromagnetic at room temperature Insulators at room temperature Good conductors at room temperature Relatively poor conductors at room temperature ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Electric dipole moment is expressed in debye unit. True False True False ANSWER DOWNLOAD EXAMIANS APP
Materials and Components In a metal, the valence electrons Either B or C Are shared by all atoms Are not shared Are shared only between neighbouring atoms Either B or C Are shared by all atoms Are not shared Are shared only between neighbouring atoms ANSWER DOWNLOAD EXAMIANS APP
Materials and Components If a small amount of Cu is added to Ni conductor, then Residual resistivity of Ni at low temperature will increase as Cu atoms act as defect centres Resistivity of Ni remains the same Resistivity of Ni will increase at all temperatures as Cu destroys the periodicity of Ni and acts as defects Resistivity of Ni will decrease at all temperatures because Cu is a better conductor than Ni Residual resistivity of Ni at low temperature will increase as Cu atoms act as defect centres Resistivity of Ni remains the same Resistivity of Ni will increase at all temperatures as Cu destroys the periodicity of Ni and acts as defects Resistivity of Ni will decrease at all temperatures because Cu is a better conductor than Ni ANSWER DOWNLOAD EXAMIANS APP
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