Materials and Components Debye temperature of metals is About 600 K About 10 K About 2 K About 200 K About 600 K About 10 K About 2 K About 200 K ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Piezoelectricity means the slight change in dimensions of a specimen when an electric field is applied. False True False True ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Hall effect is observed in a specimen (metal or semi conductor) when it is carrying current and is placed in a magnetic field. The resultant electric field inside the specimen is In a direction anti parallel to magnetic field Normal to both current and magnetic field In the same direction as current None of these In a direction anti parallel to magnetic field Normal to both current and magnetic field In the same direction as current None of these ANSWER DOWNLOAD EXAMIANS APP
Materials and Components With increase in temperature, the electrical conductivity would Decrease in metals but increase in intrinsic semiconductor Increase in metals but decrease in intrinsic semiconductor Increase in metals as well as in intrinsic semiconductor Decrease in metals as well as in intrinsic semiconductor Decrease in metals but increase in intrinsic semiconductor Increase in metals but decrease in intrinsic semiconductor Increase in metals as well as in intrinsic semiconductor Decrease in metals as well as in intrinsic semiconductor ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The elements which become superconducting at extremely low temperatures are Ferromagnetic at room temperature Good conductors at room temperature Insulators at room temperature Relatively poor conductors at room temperature Ferromagnetic at room temperature Good conductors at room temperature Insulators at room temperature Relatively poor conductors at room temperature 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 Debye rule Matthiessen’s rule Curie rule Onne’s rule Debye rule Matthiessen’s rule ANSWER DOWNLOAD EXAMIANS APP
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