Working principle of bimetallic thermometers is difference in linear co-efficien

Question

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 ?

Options:

A . Nickel

B . Brass

C . Chromel

D . Invar

Answer: Option B
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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