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Bimetalic strips are composed of two metals with different properties in the case of fire alarms it is the difference in thermal expansion that is important. When the strip is heated (due to a fire) the strip bend and can complete an electric circuit setting off the alarm.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoIt can be used to make a fire alarm by attaching it to another metal object i.e a nail and and adding a buzzer and some batteries and heating a busin burner underneath the bimetallic strip. This will make the strip curl upwards and touch the nail. This will make the buzzer go off
Wiki User
∙ 11y agoThe shape of a bimetallic strip changes as it heats and the metal conducts electricity. In a proper arrangement, the heated strip can be arranged to make contact with another electrical conductor, and a power source, closing a circuit to ring a bell.
Wiki User
∙ 16y agoWhen a fire occurs, the heat would cause the bimetallic strip in the fire alarm to bend. This would close circuits that allow currents to flow and activate the fire alarm.
Wiki User
∙ 11y agoYes, many fire alarms use a bimetallic strip as a heat detector. It bends in proportion to the heat until it contacts another piece of metal and completes a circuit.
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Which gadgets use the bimetallic strip?
fire alarm
Many thermostats use m strip?
Bimetallic strip
Does a barometer use a bimetallic strip?
yes
What is a use of a bimetallic strip in everyday life?
thermostat
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.
Is it possible to use bimetallic strip to find temperature?
because of pressure
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.
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.
Can we use bimetallic strip in iron box?
yes, in automated iron boxes
Why the copper use in bimetallic strip thermometer?
copper capture the exact temperature of the body
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.
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.
