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WAEC Physics 2019 Paper

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Question : 18

Total: 49

The wire of a platinum resistance thermometer has d resistance of 3.5Ω at 0 °C and 10.52Ω at 100°C. Calculate the temperature of the wire when its resistance is 7.5Ω.

78 °C
25 ‌oC
30‌oC
57 ‌oC

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