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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.
What uses bimetallic strip?
Appliances like electric iron, which need a cut off from the electric current from time to time as the appliance is heated adequately, use bimetallic strip for this.
Many thermostats use m strip?
Bimetallic strip
What is a use of a bimetallic strip in everyday life?
thermostat
Which gadgets use the bimetallic strip?
fire alarm
Is it possible to use bimetallic strip to find temperature?
because of pressure
Does a barometer use a bimetallic strip?
No, a barometer does not use a bimetallic strip. A barometer measures atmospheric pressure, usually using a column of mercury in a glass tube. A bimetallic strip is typically used in devices to measure temperature, as it bends with changes in temperature due to its two bonded metal strips with different coefficients of thermal expansion.
Why the copper use in bimetallic strip thermometer?
Copper is used in a bimetallic strip thermometer because it is a good conductor of heat, allowing for accurate temperature readings. When the bimetallic strip is heated, the two metals with different thermal expansion coefficients cause the strip to bend, and copper's ductility helps maintain the strip's shape over multiple temperature cycles.
Can a bimetallic strip be made from two strips of same material?
That would be more of a unimetallic strip. No, you need to use two different metals.
What happens when you put a bimetallic strip in the flame of a burner?
When a bimetallic strip is exposed to the flame of a burner, the two metals in the strip expand at different rates due to their differing coefficients of thermal expansion. This causes the strip to bend as one side expands more than the other, demonstrating the principle behind the bimetallic strip's use in thermostats and temperature-regulating devices.
How could a bimetallic strip be used to help in every day life?
A bimetallic strip can be used as a thermometer or thermostat. The two metals expand at different rates which will make it bend. You can use this to find the temperature of an oven. When the temperature of the oven increases, the strip will curve and break the electrical contact which make the oven cool down. When the oven cools the bimetallic strip will become straight again and the electrical contact will be remade and the oven will begin to reheat again.
What is bimetallic strips used for?
Bimetallic strips were commonly used in thermostats. The two metals would expand at different rates and therefore bend. When a bimetallic strip, made of iron and brass [or any other metals] is heated, both metals expand differently, causing the bimetallic strip to bend. These bimetallic strips are used in fire alarms. The heat of the fire, causes the brass and iron strips to expand, ultimately resulting in the bending of the bimetallic strip, which on bending touches the screw adjacent to it, thus completing the circuit. Once the circuit is complete, the bell begins to ring. Thus the brass bends more than the steel, but on cooling, contracts more than the steel, thus causing the bimetallic strip to bend in the opposite direction.
