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Generally, all metals contract when cooled. However, the rate at which they contract depends on their coefficient of thermal expansion. In general, materials with higher coefficients of thermal expansion will contract more when cooled.

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1y ago

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Why are two different metals used to produce movement in bimetal elements?

Two different metals are used in bimetal elements because they have different coefficients of thermal expansion. When heated or cooled, these metals expand or contract at different rates, causing the bimetal strip to bend. This bending motion is used for various applications such as in thermostats or circuit breakers.


Why is a bimetallic strip curve when it is heated or cooled?

Because the two metals have different coefficient of linear expansion


What is the different about the two kinds of metal on the bimetallic strip of a thermostat coil?

When the two metals are heated or cooled through the same change in temperature, one of them expands or contracts more than the other one does. That's why, when they're glued back-to-back, the combined strip develops a curve in it when it's heated. It curves away from the one that expands more, and toward the one that expands less.


What happens to a hot bimetallic strip when it is cooled to room temperature?

It Melts:P.


What is bimetallic stripe?

A bimetallic stripe is a material made by bonding together two different metals with different coefficients of thermal expansion. This creates a material that bends in response to temperature changes, making it useful in applications like thermostats or circuit breakers. When heated or cooled, the two metals expand or contract at different rates, causing the stripe to bend.


What makes up two or more medals?

Metals; and alloys are made of two or more metals.


What is a solid or liquid of two more or more metals?

A alloy is a solid or liquid mixture of two or more metals.


Do you say two year contract or two years contract?

two year contract two is already meaning ( more than one) so it is two year.


What happens to bimetallic strip when it is heated and cooled?

When a bimetallic strip is heated, the two metals expand at different rates causing the strip to bend towards the metal with the lower coefficient of thermal expansion. Conversely, when the strip is cooled, it bends towards the metal with the higher coefficient of thermal expansion. This bending action can be harnessed for applications like thermostats and temperature-sensitive switches.


Why does a bimetallic strip curve when it is heated or cooled?

"A bimetallic strip is made of two different metals stacked in a thin strip. Because different metals expand at different rates, one of the metals expands more than the other when the strip gets hot. This makes the strip coil and uncoil in response to changes in temperature=As the room temperature drops below the desired level, the bimetallic strip coils more tightly, and the glass tube tilts. A drop of mercury closes an electric circuit that turns the heater on. As the room temperature rises above the desired level, the bimetallic strip uncoils slightly, becoming larger. The drop of mercury rolls back in the tube, opening the electric circuit and the heater turns off."==Quote from Holt, Rinehart, and Winston Physical Science Textbook=


Is a verbal contract between two or more parties legally binding?

Yes, a verbal contract between two or more parties can be legally binding, but it may be more difficult to enforce compared to a written contract.


It contain two or more metals?

alloy