Questions
In a resistance thermometer, the resistances at 0°C and 100°C are 6.74 ohm and 7.74 ohm respectively. The temperature corresponding to 6.53 ohm resistance is :
a
+53°C
b
+21°C
c
-53°C
d
-21°C
detailed solution
Correct option is D
R100-R0Rθ-R0=100-0θ-0 ⇒ 7.74-6.746.53-6.74=100θ ⇒ θ=-21oCTalk to our academic expert!
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