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
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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
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