Bimetal thermometers consist of two thin metal strips bonded together. The metal strips must have

Bimetal thermometers consist of two thin metal strips bonded together.

The metal strips must have:

a. A small difference in coefficient of expansion
b. A large difference in coefficient of expansion
c. No difference in coefficient of expansion
d. Equal coefficients of linear expansion
e. Equal coefficients of volumetric expansion.

Show Answer

Answer: b

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