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empirekhoo
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I've been googling around but i seems not able to find why CuNi have decreasing resistivity when temperature is increased at the range of 20 celcius - 80 celcius. Please enlighten me!
thanks a bunch!
thanks a bunch!
The resistivity of CuNi decreases with increasing temperature due to the fact that as the temperature of a material increases, the atoms within the material start to vibrate more rapidly. This increased vibration causes more collisions between the atoms, which in turn disrupts the flow of electricity, leading to a decrease in resistivity.
The relationship between temperature and the resistivity of CuNi is an inverse one. This means that as the temperature of the material increases, the resistivity decreases, and vice versa.
The atomic structure of CuNi plays a significant role in its decreasing resistivity with increasing temperature. The atoms in CuNi are arranged in a specific pattern, and as the temperature increases, the atoms start to vibrate more rapidly, disrupting the regular pattern. This disruption leads to more collisions between the atoms, causing a decrease in resistivity.
Yes, besides temperature, other factors such as impurities, defects, and external magnetic or electric fields can also affect the resistivity of CuNi. These factors can alter the movement of electrons within the material, leading to changes in its resistivity.
Yes, there are certain materials, including some alloys of CuNi, where the resistivity increases with increasing temperature. However, in the case of pure CuNi, the resistivity will always decrease with increasing temperature due to its specific atomic structure and properties.