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Bimetallic strips composed of two different metals each having a different rate of thermal expansion are used in?
Wiki User
∙ 14y ago
Thermostats,.
Wiki User
∙ 14y ago
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How bimetallic strips are useful?
Bimetallic strips are useful in science experiments. They show you how one type of metal has a different thermal expansion rate than the other.
Would a bimetallic strip work if the two different metals happened to have the same rates of expansion?
The one with the higher coefficient of thermal expansion.
Why are bimetallic strips useful in thermostas?
Bimetallic strips are useful in science experiments. They show you how one type of metal has a different thermal expansion rate than the other.
Why the bimetallic strip bent with the heat?
A bimetallic strip is made up of two metals (the prefix "bi-" means "two"). The two metals have different coefficients of thermal expansion.
When a bimetallic strip is heated it bends toward the metal with the thermal expansion?
... smaller ...
How bimetallic strips are useful?
Bimetallic strips are useful in science experiments. They show you how one type of metal has a different thermal expansion rate than the other.
Would a bimetallic strip work if the two different metals happened to have the same rates of expansion?
The one with the higher coefficient of thermal expansion.
Why are bimetallic strips useful in thermostas?
Bimetallic strips are useful in science experiments. They show you how one type of metal has a different thermal expansion rate than the other.
Why the bimetallic strip bent with the heat?
A bimetallic strip is made up of two metals (the prefix "bi-" means "two"). The two metals have different coefficients of thermal expansion.
When a bimetallic strip is heated it bends toward the metal with the thermal expansion?
... smaller ...
Why are bimetallic strips used in thermostats?
The two metals chosen for the bimetallic strip have different modulii of thermal expansion, The bimetallic strip bends as the temperature changes and so the strip can be used to activate relays or other electronic switches and so work as a thermostat.
How does a thermostat use thermal expansion to run the heater?
thermostats contain bimetallic strips, which are strips of two different metals joined together. When the thermostat is on cool, thermal energy is released. when the thermostat is on high, thermal energy moves through the air (everywhere in the atmosphere).
What is the principle of the bimetallic or the compound bar?
A bimetallic bar has two different metals bound together. Different metals have different coefficients of thermal expansion. As the temperature changes, the metals will expand or contract different amounts - consequently the bar will curve on the side of the one that expands the least or contracts the most (depending on whether it is warming up or cooling down).
One common application of thermal expansion is?
Thermal expansion has been used to create many different devices including the fire sprinkler. Fire sprinklers have a bimetallic strip which will bend to one side when heated to connect to electricity and trigger the sprinkler.Ê
Which material can be used as bimetallic strip?
You may use any two metals which have different thermal expansion properties. Steel and brass are commonly used because of cheapness. There is not even a need for them to be metals - you could bond two glasses of different thermal properties, and these would bend as well.
What happens when the Bimetallic Strip cools down?
When the bimetallic strip cools down, the metals in the strip contract at different rates due to their varying coefficients of thermal expansion. This differential contraction causes the strip to bend, with the side of the metal with higher expansion coefficient (usually the inner layer) being on the inside of the curve.
How is a bimetallic strip used in a thermostat?
A bimetallic strip is used in a thermostat, by concealing it inside. When the temperature goes up, the bimetallic strip expands, and turns on the circuit for the AC/compressor ,to make the temperature cooler inside wherever the thermostat is.Two metal strips of differing thermal expansion are bonded together. Because the expansion is different the metals expand by different amounts. When heated the strip therefore has to bend, the one with the greater expansion on the outside of the curvature. As the strip bends it can either make or break a circuit contact depending on the configuration of the circuit, switching on of off the current. The reverse is true when the strip cools again.
