Physics-Resistance & Resistivity
NEET Physics Resistance & Resistivity MCQ Question
Type: MCQ-diagram based-Medium-Class 12
A platinum resistance thermometer has a wire at the ice point with a resistance of 5 Ω and at the steam point with a resistance of 5.23 Ω. If the resistance of the wire in a hot bath is measured to be 5.795 Ω, what is the temperature of the bath?
A
345.65 °C
B
100 °C
C
23.0 °C
D
50.0 °C
Correct Answer
Option A
Detailed Explanation
Using the formula for temperature calculation from resistance: Rt = R0 + α(R100 - R0) × 100, the temperature of the bath is calculated to be 345.65 °C.
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