Which of the following is universally employed as the low expansion metal in the bimetallic thermometer, which is an iron-nickel alloy containing 36% nickel and has very low co-efficient of expansion (1/20th of ordinary metals) ? (A) Invar (B) Constantan (C) Chromel (D) Alumel

Which of the following is universally employed as the low expansion
metal in the bimetallic thermometer, which is an iron-nickel alloy
containing 36% nickel and has very low co-efficient of expansion (1/20th of
ordinary metals) ?
(A) Invar
(B) Constantan
(C) Chromel
(D) Alumel
by

1 Answer

Answer :

(A) Invar
by

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