Compound Bar
Product Code : JA-PLE-4158
The Compound Bar (SKU JA-PLE-4158) is a bimetallic strip on a wooden handle used to show that different metals expand by different amounts when heated. This compound bar for demonstrating unequal expansion of metals bends visibly when warmed in a flame, because its strip is only 1 mm thick, and JaincoLab supplies it for school heat and thermal expansion lessons.
Specifications
The compound bar has a bimetal strip 150 x 15 mm and 1 mm thick, mounted in a wooden handle, with an overall length of about 270 mm; the thin strip needs very little heat to bend considerably.
| Product | Compound Bar |
| SKU | JA-PLE-4158 |
| Strip | Bimetal strip, 150 x 15 mm |
| Strip thickness | 1 mm |
| Handle | Wooden |
| Overall length | 270 mm (approx.) |
| Purpose | Showing differential expansion of metals |
Applications of the compound bar for demonstrating unequal expansion of metals
When the strip is held in a flame it curves towards the metal that expands less, and it straightens again as it cools; cooling it below room temperature makes it bend the other way, which shows how bimetallic strips work in thermostats and fire alarms.
- Demonstrating that different metals expand by different amounts
- Explaining the working of thermostats, fire alarms and flashers
- Showing reversible bending on heating and cooling
- Heat and thermal expansion lessons in middle and secondary school
Scope of supply and ordering
The listing covers the compound bar: the bimetal strip mounted in its wooden handle.
Frequently asked questions
What are the dimensions of the bimetal strip?
The strip is 150 x 15 mm and 1 mm thick, and the overall length with the handle is about 270 mm.
Why is the strip thin?
At 1 mm thick, the strip needs very little heat to bend considerably.
What does the compound bar demonstrate?
It shows the differential expansion of metals in a bimetallic strip.
Related products
- Bar and Gauge
- Expansion of Liquids Apparatus
- Kit for Heat and Thermometers
- Thermal Conductivity Apparatus
Heat and expansion apparatus is listed in Physics Lab Equipments from JaincoLab, a physics lab equipment manufacturer in India.
Request a quote
To order the Compound Bar, send the quantity and delivery destination through the JaincoLab contact page or email [email protected]. Buying under a laboratory tender? Use our tenders page.
