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What must be done to improve the conductivity of intrinsic material?
To improve the conductivity of intrinsic material, one can introduce dopants to create extrinsic semiconductors. This process modifies the material's electrical properties, boosting its conductivity. Additionally, optimizing the crystal structure and purity of the material can enhance its conductivity.
What does not affect a material resistance?
Material resistance is not affected by color, texture, or surface finish. It is primarily determined by the material's intrinsic properties such as conductivity, thickness, and temperature.
What happen to thermal conductivity of a wall if its thickness is doubled?
It becomes double as K=Q/t×L/A(T2-T1) so if the thickness (L) of an object is doubled the thermal conductivity will be doubled as thermal conductivity is directly proportional to the thickness/L of the object K=L K=2L,K=2 two times
What is the difference between conductivity and conductance, and how do they relate to each other in terms of measuring the ability of a material to conduct electricity?
Conductivity is a material's ability to conduct electricity, while conductance is the measure of how well a material can conduct electricity. Conductivity is a property of the material itself, while conductance takes into account the material's dimensions. Conductivity is measured in siemens per meter (S/m), while conductance is measured in siemens (S). Conductivity and conductance are related in that conductivity is the intrinsic property of a material, while conductance is the actual measurement of how well the material conducts electricity.
What is thermal and electrical conductiuity?
Thermal conductivity is the ability of a material to conduct heat, while electrical conductivity is the ability to conduct electricity. Materials with high thermal conductivity can transfer heat quickly, while those with high electrical conductivity allow electricity to flow easily. Both properties are important in various applications, such as in electronics and thermal management.
What must be done to improve the conductivity of intrinsic material?
To improve the conductivity of intrinsic material, one can introduce dopants to create extrinsic semiconductors. This process modifies the material's electrical properties, boosting its conductivity. Additionally, optimizing the crystal structure and purity of the material can enhance its conductivity.
What are the advantages of intrinsic semiconductor?
due to the poor conduction at room temperature,the intrinsic semiconductor as such,is not useful in the electronic devices.hence,the current conduction capability of the intrinsic semi conductor should be increased. this can be achieved by adding a small amount of impurity to the intrinsic semi conductor
Intrinsic and extrinsic motivation?
Intrinsic is the term explaining phenomenon due to internal qunatities. Extrinsic is the term explaining the same phenomenon due to foreign materials added ie external materials. In case of pure Si or Ge, intrinsic conductivity becomes possible as temperature increases. As we add trivalent or pentavalent impurities along with Si or Ge, then we get extrinsic conductivity.
Is thermal conductivity physical or chemical property?
Thermal conductivity is a Physical property
Why intrinsic conductor not used in electronic devices?
Intrinsic semiconductors have small conductivity at the room temperature. and also if we raise the temperature to increase their conductivity then they will start acting merely like a conductor. and there will not be any control over the directions or the magnitude of the current flowing through it. so by mixing the suitable impurity(dopant) we obtain the extrinsic semiconductor. so that the conductivity as well as the control over the current can be increased. Although intrinsic semiconductor are also somwhere used in electronics where i high resistance layers or a separation layers b/t two systems is needed. like in PIN diode.
What is the difference between intrinsic and extrinsic materials?
Intrinsic - A perfect semiconductor (ex: silicon) crystal with no impurities or lattice defects is called an intrinsic semiconductorExtrinsic - an extrinsic material is achieved by introducing impurities into the intrinsic material described above, such as doping silicon with boron atoms, such that the equilibrium carrier concentrations are different from the intrinsic carrier concentration.
What does not affect a material resistance?
Material resistance is not affected by color, texture, or surface finish. It is primarily determined by the material's intrinsic properties such as conductivity, thickness, and temperature.
Why don't semiconductive materials conduct current well and are of little value in their intrinsic state?
Semiconductive materials have a wider band gap compared to conductive materials, which requires more energy to move electrons into the conduction band. This results in poor conductivity in their intrinsic state. However, by introducing impurities or doping, their conductivity can be enhanced, making them valuable for use in electronic devices.
What happen to thermal conductivity of a wall if its thickness is doubled?
It becomes double as K=Q/t×L/A(T2-T1) so if the thickness (L) of an object is doubled the thermal conductivity will be doubled as thermal conductivity is directly proportional to the thickness/L of the object K=L K=2L,K=2 two times
Is doping is used to increase the conductivity of intrinsic semi conductor material?
Doping a semiconductor provides additional charge carriers to the material. The dopant atoms are easily ionized, and this provides the semiconductor with either free electrons in the conduction band or electron vacancies (or holes) in the valence band, both of which allow the semiconductor to conduct electricity.
Which element increases its electrical conductivity as its temperature increases?
The element that increases its electrical conductivity as its temperature increases is typically a metal, such as copper or silver. This behavior is due to more free electrons being available to carry electric current at higher temperatures, leading to an increase in conductivity.
What is the difference between characteristic impedance and intrinsic impedance?
I believe intrinsic impedance is more tied to the medium, thus is defined in terms of magnetic and electric permeability and electrical conductivity, while characteristic impedance is a "wider" look at the impedance. For example, you can calculate the intrinsic impedance of a 18 awg copper wire, or air, or a vacuum. If you wanted to use coax cable with an 18 awg core, you would be looking at the characteristic impedance, not the intrinsic impedance of the copper that will be carrying the waveform.
