If a bimetallic strip is heated, it will

Question

If a bimetallic strip is heated, it will (A) bend towards the metal with lower thermal expansion coefficient (B) bend towards the metal with higher thermal expansion coefficient (C) not bend at all (D) twist itself into a helix

Tardigrade Admin · Accepted Answer

Metal with higher thermal expansion coefficient expands more than metal with lower thermal expansion coefficient therefore if a bimetallic strip is heated it bend towards the metal with lower thermal expansion coefficient.

Q. If a bimetallic strip is heated, it will

bend towards the metal with lower thermal expansion coefficient

bend towards the metal with higher thermal expansion coefficient

not bend at all

twist itself into a helix

Metal with higher thermal expansion coefficient expands more than metal with lower thermal expansion coefficient therefore if a bimetallic strip is heated it bend towards the metal with lower thermal expansion coefficient.