What will happen when two different metallic strips are joined together and heated to the same temperature?

When two different strips are joined one strip bends longer which gets heated up faster. These strips are often used in thermostats in houses to control house temperature. when the strip is cold it bends one way and as it gets hot it bends the other way.

What happens when a bimetallic strip made of copper and iron is heated?

when a bi metallic strip such as a combination of either iron and brass or steel and copper , brass or copper expands more on heating than iron or steel, thus when the bi metallic strip is heated , one side expands in length ( linear expansion) more than the other causing the strip to bend in a curve .

In which direction will a bimetallic strip bend if the upper metal has a smaller and lower has a greater rate of thermal expansion?

When the bimetallic strip is heated, the metal with higher thermal expansion will bend more. Thus they bend towards the metal having a lower thermal expansion. Therefore, the correct answer is option A.

What happens to bimetallic strips on heating?

When this bimetallic strip is heated, the brass expands more than the steel and the strip curves with the brass on the outside. If the strip is cooled, it curves with the steel on the outside. Bimetallic strips are used as switches in thermostats.

Why is a bimetallic strip made of steel and copper is bent as shown in the figure on heating?

bi-metalic strips bend when heated Two metals making up the strip have different rates of expansion, so as heat is applied and the metals expand, one metal will expand faster than the other, causing that side to grow longer faster than the other side.

What happens to bimetallic strip when iron is hot?

If the strip is cooled, it curves with the steel on the outside. When heated metals expand. When this bimetallic strip is heated, the brass expands more than the steel and the strip curves with the brass on the outside.

What happens when brass and iron is heated?

higher thermal expansion coefficient means that substance will expand more as compared to any other substance per degree rise in temperature. And hence due to this phenomenon brass side shows higher expansion especially linear expansion than iron and hence forcing the whole bimetallic strip to bend.

Why does a metal strip bend when heated?

How does a bimetal strip work?

The bimetallic strip consists of two thin strips of different metals, each having different coefficients of thermal expansion. When the temperature decreases, the strip bends in the direction of metal having a higher temperature coefficient. The deflection of the strip indicates the temperature variation.