Thank you! Electrical Resistance and Temperature Conceptual Question The electri

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Thank you!

Electrical Resistance and Temperature Conceptual Question The electrical resistance of most materials is dependent on temperature. For many materials, the resistance decreases as the temperature of the material decreases. The data below show the resistance of a disk of YBa2Cu3 07, a hard, brittle ceramic, at temperatures between 200 K and 240 K. (Figure 1) Based on the trend of these data, predict the expected resistance R of the sample at 160 K. Express your answer in milliohms (10-3 Ohm) Additional data were collected and are displayed in the figure. (Figure 2) Based on the trend of these data, predict the expected resistance R of the sample at temperatures very close to absolute zero.

Explanation / Answer

R = 4 x 10^-3 ohms (based purely on the data provided)...
in case of metals, resistance at absolute zero drops to zero known as superconductivity..

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