0
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.
Add your answer:
Earn +20 pts
Thermal conductivity temperature to an object that has a?
The thermal conductivity of an object refers to its ability to conduct heat. This ability can vary based on the material of the object and can change with temperature. Generally, as temperature increases, thermal conductivity also tends to increase for most materials.
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 well does phosphor bronze conduct electricity?
Phosphor bronze is a good conductor of electricity, although not as efficient as pure copper. Its conductivity is influenced by the alloy composition and can vary. Overall, phosphor bronze is commonly used in electrical components and connections due to its good conductivity and corrosion resistance.
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 of an object refers to its ability to conduct heat. This ability can vary based on the material of the object and can change with temperature. Generally, as temperature increases, thermal conductivity also tends to increase for most materials.
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.
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
What is a normal measurement of fresh water conductivity?
Freshwater conductivity typically ranges from 50 to 1500 µS/cm (microsiemens per centimeter). The exact measurement can vary depending on factors such as dissolved ions and temperature. High conductivity levels may indicate contamination or high mineral content in the water.
What is the order of metal thermal conductivity?
In general, metals have high thermal conductivity, with silver being the most conductive followed by copper, gold, aluminum, and iron. However, the exact order can vary depending on factors like temperature, impurities, and crystal structure.
Does copper possess high or low thermal conductivity?
Copper has a high thermal conductivity, not low. This is a good generalization of any metal, although they vary in conductivity.
