Thermal Properties of Matter - Thermal Expansion Question with Solution | TestHub
Thermal Properties of MatterThermal ExpansionThermal StressMedium3 minCT49
Thermal Properties of MatterMediummultiple choice
A fire alarm circuit is as shown. Due to fire the exposed bimetallic strip made of invar and copper is heated up. Which of the following will switch on.
Options:(select one or more)
Answer:
A, D
Solution:
Use the thermal strain αΔT, volume coefficient 3α, and elastic compatibility where constrained.
Substitution gives the marked answer ['A', 'D'].
Stream:JEESubject:Thermal Properties of MatterTopic:Thermal ExpansionSubtopic:Thermal Stress
⏱ 3mℹ️ Source: CT49
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