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CGP EDU Academic Team
Published on: September 13, 2026
he resistance R t of a conductor varies with temperature t as shown in the figure. If the variation is represented by $R_{t} = R_{0} \left[ 1 + \alpha t + \beta t^{2} \right]$ , then

Text Solution
Verified by ExpertsThe correct answer is:
A
The resistance $R_t$ typically increases with temperature for conductive materials, following the positive slope seen in the graph provided. Therefore, the values represented by the two given options are likely negative as they suggest a decrease in resistance with temperature, which contradicts the behavior shown by the graph. Hence, the correct answer is option A.
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