Materials and Components The fact that domains exhibits spontaneous magnetisation is Boltzmann’s statistics Curie-Weiss law Second hypothesis is of Weiss First hypothesis is of Curie Boltzmann’s statistics Curie-Weiss law Second hypothesis is of Weiss First hypothesis is of Curie ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The merger of hole and free electron is called Recombination Free electrons Thermal energy Covalent bonding Recombination Free electrons Thermal energy Covalent bonding ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The rule that resistivity of conductors can be separated into two parts viz. temperature independent and temperature dependent is known as Curie rule Onne’s rule Matthiessen’s rule Debye rule Curie rule Onne’s rule Matthiessen’s rule Debye rule ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Which of the following are true for relative dielectric constant?1. It is dimensionless.2. It is equal to 1 for vacuum.3. It is equal to 1 for all substances. 2 and 3 only 1 and 2 only 1 and 3 only 1, 2 and 3 2 and 3 only 1 and 2 only 1 and 3 only 1, 2 and 3 ANSWER DOWNLOAD EXAMIANS APP
Materials and Components As the atoms of rare gases become larger, electronic polarizability Decreases May increase or decrease Increases Remains the same Decreases May increase or decrease Increases Remains the same 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 will decrease at all temperatures because Cu is a better conductor than Ni Resistivity of Ni will increase at all temperatures as Cu destroys the periodicity of Ni and acts as defects Resistivity of Ni remains the same Residual resistivity of Ni at low temperature will increase as Cu atoms act as defect centres Resistivity of Ni will decrease at all temperatures because Cu is a better conductor than Ni Resistivity of Ni will increase at all temperatures as Cu destroys the periodicity of Ni and acts as defects Resistivity of Ni remains the same ANSWER DOWNLOAD EXAMIANS APP
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