MCQ
Two metal strips that constitute a thermostat must necessarily differ in their:
- Aresistivity
- Blength
- Cmass
- Dcoefficient of linear expansion
✓
Answer
D. coefficient of linear expansion
Explanation:
For metallic strip to bend on change in temperature the coefficient of linear expansion should be different.
Explanation:
For metallic strip to bend on change in temperature the coefficient of linear expansion should be different.
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