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The temperature coefficient of resistance of a wire is 1.25 × 10^–3/°C At 300 K, its resistance is 1Ω.

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The temperature coefficient of resistance of a wire is 1.25 × 10–3/°C At 300 K, its resistance is 1Ω. What is the temperature at which its resistance becomes 2 Ω ?

(A) 827 °C 

(B) 1127 °C 

(C) 800 °C 

(D) 1100 °C

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The correct option is (B) 1127 °C.

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