Materials and Components The number of protons in a silicon atom are 14 8 4 12 14 8 4 12 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. 1, 2 and 3 1 and 2 only 2 and 3 only 1 and 3 only 1, 2 and 3 1 and 2 only 2 and 3 only 1 and 3 only ANSWER DOWNLOAD EXAMIANS APP
Materials and Components When a material is in superconducting state and a magnetic field is applied The superconducting property is not affected The superconducting property may be destroyed The material may become an insulator The superconducting property may be affected and resistivity may increase from zero to a low value The superconducting property is not affected The superconducting property may be destroyed The material may become an insulator The superconducting property may be affected and resistivity may increase from zero to a low value ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The merger of hole and free electron is called Covalent bonding Free electrons Recombination Thermal energy Covalent bonding Free electrons Recombination Thermal energy ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The dielectric losses do not depend on frequency. True False True False 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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