The merger of hole and free electron is called Covalent bonding Recombination Free electrons Thermal energy TRUE ANSWER : ? YOUR ANSWER : ?
The rule that resistivity of conductors can be separated into two parts viz. temperature independent and temperature dependent is known as Debye rule Curie rule Matthiessen’s rule Onne’s rule TRUE ANSWER : ? YOUR ANSWER : ?
In an intrinsic semiconductor, at a given temperature T The number of electron hole pairs generated per second due to thermal motion is always more than the number of electron-hole pairs lost per second due to recombination The number of electron-hole pairs generated per second due to thermal motion is always less than the number of electron-hole pairs lost per second due to recombination Any of the above The number of electrons-hole pairs generated per second due to thermal motion are equal to the number of electron-hole pairs lost per second due to recombination TRUE ANSWER : ? YOUR ANSWER : ?
The elements which become superconducting at extremely low temperatures are Ferromagnetic at room temperature Relatively poor conductors at room temperature Insulators at room temperature Good conductors at room temperature TRUE ANSWER : ? YOUR ANSWER : ?
Schrodinger wave equation is a Differential equation Partial differential equation Linear equation None of these TRUE ANSWER : ? YOUR ANSWER : ?
The resistance of a photoconductor Increases with increase in light intensity Remains constant May increase or decrease with increase in light intensity Decreases with increase in light intensity TRUE ANSWER : ? YOUR ANSWER : ?
Debye temperature of metals is About 200 K About 600 K About 2 K About 10 K TRUE ANSWER : ? YOUR ANSWER : ?
The most important set of specifications of transformer oil include flash point and viscosity dielectric strength and viscosity dielectric strength and flash point viscosity and flash point TRUE ANSWER : ? YOUR ANSWER : ?