Question

The resistance R of $\theta$ is equal to R^o(1+$\alpha$ $\theta$ + $\beta$ $\theta$ ²). Where $\alpha$ =3.8*10³ and $\beta$ = -5.6*10^-7. What temparature will the platinium thermometer indicate when the temparature on the gas scale is 200K

Answer 1

R=R₀(1+$\alpha$ $\theta$ + $\beta$ $\theta$ ²),

$R_1=1.74R_0.$