Materials and Components When a material is in superconducting state and a magnetic field is applied The material may become an insulator The superconducting property is not affected The superconducting property may be destroyed 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 is not affected The superconducting property may be destroyed The superconducting property may be affected and resistivity may increase from zero to a low value ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Ferrimagnetic materials have anti parallel orientation of equal moments of permanent dipoles. True False True False 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
Materials and Components The resistance of a photoconductor Decreases with increase in light intensity Remains constant May increase or decrease with increase in light intensity Increases with increase in light intensity Decreases with increase in light intensity Remains constant May increase or decrease with increase in light intensity Increases with increase in light intensity ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The elements which become superconducting at extremely low temperatures are Good conductors at room temperature Relatively poor conductors at room temperature Insulators at room temperature Ferromagnetic at room temperature Good conductors at room temperature Relatively poor conductors at room temperature Insulators at room temperature Ferromagnetic at room temperature 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 and 2 only 1, 2 and 3 2 and 3 only 1 and 3 only 1 and 2 only 1, 2 and 3 2 and 3 only 1 and 3 only ANSWER DOWNLOAD EXAMIANS APP
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