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 Debye rule Matthiessen’s rule Curie rule Onne’s rule Debye rule Matthiessen’s rule ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The number of protons in a copper atom are 29 11 9 2 29 11 9 2 ANSWER DOWNLOAD EXAMIANS APP
Materials and Components If a small amount of Cu is added to Ni conductor, then Resistivity of Ni will increase at all temperatures as Cu destroys the periodicity of Ni and acts as defects 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 remains the same Resistivity of Ni will increase at all temperatures as Cu destroys the periodicity of Ni and acts as defects 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 remains the same ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The phenomenon of dielectric hysteresis occurs with Both AC and DC AC None of these DC Both AC and DC AC None of these DC ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Electrical contact materials used in switches, brushes, relay must possess Low thermal conductivity and high melting point High thermal conductivity and high melting point Low thermal conductivity and low melting pointL High thermal conductivity and low melting point Low thermal conductivity and high melting point High thermal conductivity and high melting point Low thermal conductivity and low melting pointL High thermal conductivity and low melting point ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The merger of hole and free electron is called Covalent bonding Recombination Thermal energy Free electrons Covalent bonding Recombination Thermal energy Free electrons ANSWER DOWNLOAD EXAMIANS APP
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