Question

experiment periormed by mm.
3. Resistance of a resistance thermometer at 0°C is 62. At
100°C is 72 and at unknown temperature is 892. Find out
unknown temperature.
3
OR​

Answer 1

Answer:

α= (R2-R1)/(R1T2-R2T1)

= (892-62)/(62*T2-1165*273)

= 10/(23,126 - 19,656)

= 10/3,470

= 0.00288184438

α= (R2-R1)/(R1T2-R2T1)

α= (892-62)/(62*T2-1165*273)

0.00288184438 = 830/(62*T2-318,045)

(62*T2-318,045) = 830/0.00288184438

(62*T2-318,045) = 288,195

62*T2=606,240

T2=606,240/62 = 9778 K

T2 = 9,505 °C