Physics > 2003 > 12
WASSCE
A platinum resistance thermometer has a resistance of 4Ω at 0°C and 10Ω at 100°C. Assuming the resistance changes uniformly with temperature, calculate the resistance of the thermometer when the temperature is 45°C.
A.
14.0Ω
B.
6.7Ω
C.
3.2Ω
D.
2.7Ω
Answer: B
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