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What is the different about the two kinds of metal on the bimetallic strip of a thermostat coil?
Wiki User
∙ 12y ago
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.
Wiki User
∙ 12y 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.
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.
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.
Does specific heat capacities have anything to do with different metals in a bimetallic strip used in a thermostat?
The principal thing is linear expansion rates as temperatures rise, different metals have different rates of expansion. In a bimetallic strip, one layer of one metal is fused onto one layer of another metal with a different linear expansion rate, when heated the strip will curve along its length due to the different expansion rates, the greater the temperature rise, the more the curvature, this movement is used to trip a switch.
What are the function of Bimetallic thermometer?
A bimetallic thermometer has a coil of metal strips in it. The metal strips are made of two different materials that expand/contract at different rates. Because they're connected together at one end, when the metals warm up or cool down, the coil changes shape. You use a bimetallic thermometer when you want an electrical circuit to close due to a change of temperature.
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.
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.
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.
Contains a piece of metal that bends when its hot?
A thermostat is the most common item containing a bimetallic strip.
Does specific heat capacities have anything to do with different metals in a bimetallic strip used in a thermostat?
The principal thing is linear expansion rates as temperatures rise, different metals have different rates of expansion. In a bimetallic strip, one layer of one metal is fused onto one layer of another metal with a different linear expansion rate, when heated the strip will curve along its length due to the different expansion rates, the greater the temperature rise, the more the curvature, this movement is used to trip a switch.
What are the function of Bimetallic thermometer?
A bimetallic thermometer has a coil of metal strips in it. The metal strips are made of two different materials that expand/contract at different rates. Because they're connected together at one end, when the metals warm up or cool down, the coil changes shape. You use a bimetallic thermometer when you want an electrical circuit to close due to a change of temperature.
What is helical bimetallic strip?
A helical bimetallic strip is two strips of metal with differing boiling points that have been fused together, spiraling upwards around a central object. When heat is applied to the bimetallic strip, the different chemical properties in each metal strip will cause them to expand, forcing the helical strip to expand upwards.
What is the principel of bimetallic strip?
A bimetallic strip is made from two combined metal strips that have different rates of expansion when heated. This causes the strip to bend and so close or open an electrical contact switch.
What are the 2 metal strips in a battery called?
a bimetallic strip
Why bimetallic strip bend in curve instead of showing linear expansion on heating?
If one metal expands or contracts at a different rate than the other, and they are bonded together, as they are in a bimetallic strip, a curve is inevitable - it physically has to happen, if you think about it.
Why does a bimetallic strip bend when heated?
A bimetallic strip bends when heated because it is composed of two different types of metal. The different metals form the two sides of the strip expand and contract at different rates when subjected to a temperature change. When heating a bimetallic strip, one side of the metals expands faster than the other, making it longer. Because it is bonded to the other metal, it cannot expand in a straight line. The only way the two metals can stay bonded while expanding at different rates, is for strip to bend, one side becoming longer than the other.
Give the different kinds of metal and give their characteristics?
Do you mean metal (music) or metal (science)?
