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The electrical conductivity of a semiconductor typically increases with temperature. As the temperature rises, more charge carriers are generated in the semiconductor, leading to higher conductivity. This is due to the increased thermal energy that excites electrons into the conduction band.
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How does the gas electrical conductivity vary with different factors?
The electrical conductivity of gas can vary based on factors such as temperature, pressure, and the presence of impurities. Generally, higher temperatures and pressures can increase conductivity, while impurities can either increase or decrease conductivity depending on their nature.
Thermal conductivity temperature to an object that has a?
The thermal conductivity temperature of different objects vary from one object to another. When the two objects are placed together, there will be a change in temperature through heat conduction.
Do all electrical conductors conduct current equally well?
No, not all electrical conductors conduct current equally well. The ability of a material to conduct electricity is determined by its conductivity, which can vary depending on factors such as the material's composition, structure, and temperature. Metals like copper and silver are known for their high conductivity, while materials like plastic and rubber have low conductivity.
How will molar conductivity vary with concentration or temperature?
Molar conductivity typically decreases with increasing concentration due to increased ion-ion interactions at higher concentrations. Additionally, molar conductivity generally increases with temperature due to enhanced ion mobility and decreased viscosity of the electrolyte solution.
Is boron likely to be an insulator?
No, boron is not likely to be an insulator. It is a metalloid with properties that are in between those of metals and nonmetals, so its conductivity can vary. Pure boron tends to behave more like a semiconductor rather than an insulator.
How does the gas electrical conductivity vary with different factors?
The electrical conductivity of gas can vary based on factors such as temperature, pressure, and the presence of impurities. Generally, higher temperatures and pressures can increase conductivity, while impurities can either increase or decrease conductivity depending on their nature.
What combination of factors is most suitable for increasing the electrical conductivity of metals?
Resistivity is a constant for any particular material, and independent of that material's physical dimensions or shape. However, it does vary with temperature which is why resistivity is always quoted at a particular temperature. Variations in resistivity due to temperature change is the reason that the resistance of a material varies with temperature. In SI, resistivity is expressed in ohm metres.
Can you represent electrical conductivity by finding its electrical resistance?
Conductivity is the reciprocal of resistivity, and is expressed in siemens per metre (S/m). Resistivity and, therefore, conductivity vary with temperature so are usually quoted at a specified temperature.Resistance is expressed in ohms. If you accurately measure the resistance, length, and cross-sectional area of a conductor, then you could determine its resistivity and, from that, its conductivity.
What is value of electrical conductivity of fuel oil?
The electrical conductivity of fuel oil can vary depending on its composition, but typically falls in the range of 10-200 picosiemens per meter (pS/m). This measurement may also be influenced by factors such as temperature, impurities, and additives present in the fuel oil.
Thermal conductivity temperature to an object that has a?
The thermal conductivity temperature of different objects vary from one object to another. When the two objects are placed together, there will be a change in temperature through heat conduction.
Do all electrical conductors conduct current equally well?
No, not all electrical conductors conduct current equally well. The ability of a material to conduct electricity is determined by its conductivity, which can vary depending on factors such as the material's composition, structure, and temperature. Metals like copper and silver are known for their high conductivity, while materials like plastic and rubber have low conductivity.
What is the electrical resistance of a penny?
The electrical resistance of a penny can vary based on its composition and condition, but a typical copper penny (post-1982) has a resistance of about 1 to 2 ohms. This value can change due to factors like oxidation, surface condition, and temperature. Generally, the resistance is low due to copper's excellent conductivity.
What is the conductivity of sea water?
The conductivity of seawater is typically around 3.5 to 5.8 Siemens per meter (S/m) at a temperature of 25 degrees Celsius. This conductivity is primarily due to the presence of dissolved salts, such as sodium and chloride ions, which allow the water to conduct electricity. The conductivity of seawater can vary based on factors such as temperature, salinity, and the presence of other dissolved substances. Conductivity is an important parameter in oceanography and environmental monitoring to assess the health and composition of marine ecosystems.
How will molar conductivity vary with concentration or temperature?
Molar conductivity typically decreases with increasing concentration due to increased ion-ion interactions at higher concentrations. Additionally, molar conductivity generally increases with temperature due to enhanced ion mobility and decreased viscosity of the electrolyte solution.
Is boron likely to be an insulator?
No, boron is not likely to be an insulator. It is a metalloid with properties that are in between those of metals and nonmetals, so its conductivity can vary. Pure boron tends to behave more like a semiconductor rather than an insulator.
Use of a zener diode in temperature sensing applications?
All semiconductor are sensitive to temperature. Some vary greatly some not so great. Zeners are not one of class as greatly. Zeners do change voltage slightly as temperature vary like all active devices. But to use one as a temperature sensor is bad idea.
HOW DOES conductance vary with temperature?
yes temperature affects the conductivity of conductor and semi conductors but in case of insulators temp. has no effect. While we talk about conductors as temp. increases conductivity decreases ,the question is why, look if we take an example of copper the conductivity is so high at normal temperature because the molecules in the copper are so close but when we increase temperature the inter molecule distance increases and result is increasing resistance of the copper, and as we know that resistance is inversely proportional to the conductivity. So in the case of conductor, temperature affects the conductivity. Hey may be you are familiarize with the new aspect called superconductivity, the same effect is here while the temperature of a conductor is so low approximately -273degree the conductor becomes superconductor because Resistance become so low (can say approx. 0 but not exact 0). You should know that most metals increase their electrical resistivity by about 0.005 per degree. Good luck Rjames007
