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What is the effect of temperature on hall coefficient of a lightly doped semiconductor?
hall coefficient of a lightly doped semiconductor will decrease with increase in temp as hall coefficient is inversely proportional to number density of charge carriers.
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Why intrinsic semiconductor has negative halls coefficient?
The difference in the electron and hole mobilities is responsible for the small negative Hall coefficient of intrisic semiconductors. Refs: C.M.Hurd : Hall effect in metals and alloys R.Asokamani :solid state physics Busch& Schade; Solid state Physics
What is kink effect?
The 'kink effect' now-a-days used in semiconductor physics describes the design characteristic of a semiconductor device. The design earns it's name after 'Hofmeister kink effect' a car design which describes sharp streamlined type (by look) design of rear window bottom. The kink effect in semiconductor device describes such sharp heterojunction intentionally or unintentionally observed in the device.
Which shows a stronger hall effect metallic conductor or semiconductor?
semiconductors
What is voltage equivalent of temperature?
The voltage equivalent of temperature is often represented through the concept of thermoelectric effects, particularly in thermocouples, where a voltage is generated in response to a temperature difference. This relationship is described by the Seebeck effect, where the voltage produced is proportional to the temperature gradient. In thermodynamics, temperature can also be expressed in terms of energy per unit charge, linking it to the concept of voltage in certain contexts, such as in the behavior of semiconductor materials. Overall, while not directly equivalent, voltage can serve as an electrical representation of temperature in specific applications.
What effect do added impurities have on semiconductor conductivity?
It is called as DOPING. Doping is the process in which you add an impurity to a pure semiconductor to increase its conductivity. While doping is done, crystal structure of semiconductor is not disturbed.
What is the effect of temperature on an intrinsic semiconductor?
An intrinsic semiconductor is basically a pure semiconductor, though some might argue that a small amount of doping can still yield an intrinsic semiconductor. In the crystal structure of this material, there are very few electrons crossing the band gap into the conduction band, and this stuff doesn't want to conduct much current. But as temperature increases, more electron-hole pairs will appear as electrons jump that band gap and take up places in the conduction band. And if you guessed that increasing temperature will permit the intrinsic semiconductor to conduct current flow a bit better, you'd be right. The intrinsic semiconductor has a positive temperature coefficient. More heat, more conduction under the same conditions.
Effect of temperature N-type semiconductor?
Type your answer here... conductivity is decreases with temp
How is the Joule-Thomson effect calculated in thermodynamics?
The Joule-Thomson effect is calculated in thermodynamics by using the Joule-Thomson coefficient, which is the rate of change of temperature with pressure at constant enthalpy. This coefficient is determined by taking the partial derivative of temperature with respect to pressure at constant enthalpy. The formula for the Joule-Thomson coefficient is given by (T/P)H, where is the Joule-Thomson coefficient, T is temperature, P is pressure, and H is enthalpy.
What is the effect of temperature on transistor?
conductivity of semiconductors increases with increase in temperature as breakdown of covalent bonds take place in the semiconductor due to increase in temp but more & more increase in the temp may result in the breakdown or damage of the semiconductor which results in the decrease in conductivity of semiconductor
Hall effect in semiconductor?
Hall effect
Why intrinsic semiconductor has negative halls coefficient?
The difference in the electron and hole mobilities is responsible for the small negative Hall coefficient of intrisic semiconductors. Refs: C.M.Hurd : Hall effect in metals and alloys R.Asokamani :solid state physics Busch& Schade; Solid state Physics
How does temperature effect semiconductors?
Firstly a general rule: Too hot fries anything.(and lesser important: too cold and you get superconduction) Resistors For normal resistors: as temperature increases, the electrical resistance decreases.Though specially made heat sensitive resistors with the opposit effect (for temperature measurements) do exist.
What is mosfet?
Metal Oxide Semiconductor Field Effect Transistor
What is effect of temperature on resistance of a wire?
As temperature increases, the resistance of a wire also increases. This is because as the temperature rises, the atoms in the wire vibrate more vigorously, causing more collisions with electrons and impeding the flow of current. This relationship between temperature and resistance is known as the temperature coefficient of resistance.
What is kink effect?
The 'kink effect' now-a-days used in semiconductor physics describes the design characteristic of a semiconductor device. The design earns it's name after 'Hofmeister kink effect' a car design which describes sharp streamlined type (by look) design of rear window bottom. The kink effect in semiconductor device describes such sharp heterojunction intentionally or unintentionally observed in the device.
What is the expansion of mosfet?
metal oxide semiconductor field effect transistor
Which shows a stronger hall effect metallic conductor or semiconductor?
semiconductors
