A platinum-resistance thermometer has a resistance of 4Ω at 0°C and 12Ω at 100°C. Assuming that the resistance changes uniformly with temperature. Calculate the resistance of the thermometer when the temperature is 45°C.
A.
6.0Ω
B.
6.42Ω
C.
7.6Ω
D.
8.4Ω
E.
16.0Ω
Correct Answer: Option C
Explanation
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