A) \[40{}^\circ \,C\]
B) \[50{}^\circ C\]
C) \[60{}^\circ \,C\]
D) \[70{}^\circ C\]
Correct Answer: B
Solution :
Change in resistance \[3.70 - 2.71 =0.99 \Omega \] corresponds to interval of temperature\[90{}^\circ C\]. So change in resistance \[3.26 - 2.71=0.55\,\Omega \] corresponds to change in temperature \[=\,\,\,\frac{90}{0.99}\times 0.55=50{}^\circ C\]
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