CAPE Physics Unit 1 · 2017 · Paper 1 · Question Q33
Temperatures on the empirical centigrade scale are determined by the formula
\theta = \frac{x_\theta - x_0}{x_{100} - x_0} \times 100^\circ\text{C},
where x is a physical property that varies with temperature. Which of the following properties does x represent for a thermocouple?
- (A)Electromotive force (emf)
- (B)Internal resistance
- (C)Volume
- (D)Length
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