Working principle of bimetallic thermometers is difference in linear c – McqOptions

MCQOPTIONS

1.	Working principle of bimetallic thermometers is difference in linear co-efficient of thermal expansion of two strips of different metals welded together. Which of the following has the maximum thermal co-efficient of linear expansion?
A.	Nickel
B.	Brass
C.	Chromel
D.	Invar
Answer» C. Chromel

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