Materials and Components Which inductor is linear? Cast iron cored Air cored Sheet steel cored Iron alloy cored Cast iron cored Air cored Sheet steel cored Iron alloy cored ANSWER DOWNLOAD EXAMIANS APP
Materials and Components When a dielectric material is subjected to alternating field, the absorption of energy by the material from the field is given by the imaginary part of polarizability. False True False True ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The number of protons in a copper atom are 11 9 2 29 11 9 2 29 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 Onne’s rule Matthiessen’s rule Debye rule Curie rule Onne’s rule Matthiessen’s rule Debye rule Curie rule ANSWER DOWNLOAD EXAMIANS APP
Materials and Components When a material is in superconducting state and a magnetic field is applied The superconducting property may be affected and resistivity may increase from zero to a low value The material may become an insulator The superconducting property may be destroyed The superconducting property is not affected The superconducting property may be affected and resistivity may increase from zero to a low value The material may become an insulator The superconducting property may be destroyed The superconducting property is not affected 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 increase at all temperatures as Cu destroys the periodicity of Ni and acts as defects Resistivity of Ni remains the same 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 will increase at all temperatures as Cu destroys the periodicity of Ni and acts as defects Resistivity of Ni remains the same Resistivity of Ni will decrease at all temperatures because Cu is a better conductor than Ni ANSWER DOWNLOAD EXAMIANS APP
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