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Bimetallic strips can be used as thermostats.
The two metals expand at different rates, therefore, the strip will bend or curve. This property can be used to regulate the temperature of an oven. As the temperature increases, the metal bimetallic strip curves away and breaks the electrical contact, the oven cools. As the oven cools the strip straightens and the electrical contact is remade and the oven reheats.
As these two metals have different coefficient of linear expansion they would bend when they get heated. So switch off and on is possible as the temperature changes.
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How do you make a circuit using bimetallic strip?
The bimetallic strip is made of two different metals, bonded together. The two metals have different temperature expansion coefficients, so when the bonded assembly is heated or cooled, it curves one way or the other, allowing a switch to be opened or closed.
What does the bimetallic strip in an electric iron do?
It is used as a thermostat.A thermostat is a device used to control the temperature of any equipment, in this case an electric iron.Two little strips of different types of metals are welded or brazed together. These little strips will be mounted inside the the iron near to the hot plate, held down just at one side.An electrical contact will join the bimetallic strip into the electrical circuit of the iron. Another little flat metal plate will be mounted near the free end of the bimetallic strip. This little fixed plate will touch the free end of the bimetallic strip.So now you turn the iron on. The irons' hot plate heats up. The bimetallic plate heats up too as it is close to the hot plate.Ok, now is the clever bit someone once thought out. The two strips of metal heat up and expand. As the properties of the metals are different they will expand at different amounts. As the two strips are stuck together the bimetallic strip will bend.When it bends it will eventually bend away from the fixed plate. Assuming its been installed with the bimetallic strip the right way around! because the strip will bend to the side which has the metal that expands less. When it no longer touches the plate the circuit will turn off. And hence the power is turned off to the iron.So how come that dial makes the iron hotter or less hot? When you are twisting the dial you are actually squeezing some tension into the bimetallic strip so that it will have to get hotter before it will bend away from the contact and hence break the circuit.Thats the idea!
Any 5 gadgets in which bimetallic strip is used?
They're all thermostats of on kind or another: home, car, stove, hot-water heater,
What is a bimetallic coin?
A bimetallic strip is often used in thermostats because it is quite simple to make and responds predictably to changes in temperature. The bimetallic strip is pretty much what it sounds like - a strip made from two metals. Inthermostatsit is common to make one side out of steel and the other out of copper - then bond them together. they are formed into a curving spiral. Different metals have different coefficients of thermal expansion so as the temperature changes, the spiral strip either curls up or uncurls as one side expands or contracts more than the other. The control isattachedto one end of the strip so that as it curls or uncurls, it rotates the control.Sometimes the control is a simple mercury switch that closes a contact whenrotatedone way and opens the contact when rotated the other. Sometimes one end is attached to a power source and the other end is connected to an electric contact, which moves as the strip curls and uncurls.You can also attach it to a pointer and have it point to temperatures on a dial.
What is different about the two kinds of metal on the bimetallic strip of a thermostat coil?
the two dissimillar metals have different heat coefficient.on the application of heat the two mtels which are comonly bonded in shape of spiral or helix expands unevenly.that's results in diferential expansion that's unwind the expansion this differential expansion is sensed by the pointer and the differentail exapansion of the metal is shown in terms of pointer deflection on the scale as measured value............. the two dissimillar metals have different heat coefficient.on the application of heat the two mtels which are comonly bonded in shape of spiral or helix expands unevenly.that's results in diferential expansion that's unwind the expansion this differential expansion is sensed by the pointer and the differentail exapansion of the metal is shown in terms of pointer deflection on the scale as measured value.............
What household appliance could a bimetallic strip be used?
A bimetallic strip could be used in a thermostat, where it can bend and complete or break an electrical circuit to regulate temperature.
What happens when bimetallic strip is heated?
The bimetallic strip bends.
How much does a bimetallic strip cost?
The cost of a bimetallic strip can vary depending on the size, material, and manufacturer. On average, a bimetallic strip can range from a few dollars to tens of dollars.
How could a bimetallic strip be used to help you perform a parctical task in everyday life?
A bimetallic strip can be used in a thermostat to control the temperature of a heating or cooling system. When the temperature changes, the different expansion rates of the two metals in the strip causes it to bend, activating or deactivating the heating or cooling system accordingly. This helps maintain a desired temperature in a room.
Many thermostats use m strip?
Bimetallic strip
Can anyone explain the use of a bimetallic strip in heat regulation in an electric iron?
When the temperature of the iron increases, the bimetallic strip bends upwards. This breaks the contact between the strip and the heating coil. When the temperature falls, the bimetallic strip bends down and the contact is restored.
How could a bimetallic strip be used to make a thermometer?
A bimetallic strip can be used in a thermometer by attaching one end to a pointer and placing the other end in contact with a temperature-sensitive substance. As the temperature changes, the bimetallic strip will bend due to the different rates of expansion of the two metals, causing the pointer to move and indicate the temperature on a scale.
What is a bimetallic strip and where can it be used?
A bimetallic strip is made of two different metals bonded together, which have different coefficients of thermal expansion. This causes the strip to bend when heated or cooled. Bimetallic strips are often used in thermostats, temperature switches, and circuit breakers to control temperature-sensitive mechanisms.
Which two metals are used in bimetallic strip?
Commonly, brass and steel are used in a bimetallic strip. This combination allows the strip to bend or warp when subjected to temperature changes due to the different thermal expansion coefficients of the two metals.
What is bimetallic strip made of?
A bimetallic strip is typically made of two different metals fused together, such as brass and steel or copper and iron. These metals have different coefficients of thermal expansion, causing the strip to bend when exposed to temperature changes.
Does the bimetallic strip bend when heated?
yes
How could a bimetallic strip be used to help in every day life?
A bimetallic strip can be used in thermostats to control temperature by bending due to temperature changes. This can be seen in appliances like ovens, refrigerators, and irons where the bimetallic strip acts to regulate the temperature setting.
