What is a bimetallic strip made of?

We would like to perpare a scale whose length does not change with temperature. It is proposed to prepare a unit scale f this type whose length remains, say 10 cm. We can use a bimetallic strip made of brass and iron each of different length (both components) would change in such a way that differnece between theri lenght rermain constant. If alpha_(iron) = 1.2 xx 10^(-5)//K and alpha_(brass) = 1.8 xx 10^(-5)//K, what should we take as lenght of each strip ?

What is a bimetallic strip? Why does a bimetallic strip of brass and iron bend on heating?

(A) : When a Bimetalic strip made up of Brass and Iron is heated then brass lies on the convex side. ( R) : Due to lower value of coefficient of linear expansion, brass aquires convex shape.

Where is bimetallic strip used?

A bimetallic strip is used in:

A bimetallic strip of brass and iron is straight at room temperature. When this bimetallic strip is heated it bends, such that:

If a bimetallic strip is heated it will

If a bimetallic strip is heated it will

What do you mean by bimetallic strip and where is it used?

How is bimetallic strip used in fire alarm?