Question

Сопротивление проводника при температуре 20 градусов ровно 14.5 Ом , длина 100м, Поперечное сечение 0.2 мм в квадрате . Определить материал из которого изготовлен провод??

Answer 1

p-удельное сопротивление R-сопротивление S-площадь поперечного сечения l-длина

p=R*S/l   p=14.5 Ом*0.2мм в квадрате/100м=0.029(Алюминий)

Answer 2

Resistance of the Conductor at 20 Degrees Celsius

To determine the material from which the conductor is made, we need to calculate its resistance at 20 degrees Celsius. The given information includes:

- Resistance: 14.5 Ohms - Length: 100 meters - Cross-sectional area: 0.2 square millimeters

To calculate the resistance of the conductor, we can use the formula:

Resistance = (Resistivity x Length) / Cross-sectional area

However, we need to know the resistivity of the material to proceed with the calculation. Unfortunately, the provided search results do not contain the necessary information to determine the resistivity of the material. Therefore, without additional information, it is not possible to determine the material from which the conductor is made.

If you have any additional information or if there is anything else I can assist you with, please let me know.