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COMPOUND BAR (COMPOUND STRIP)
- To demonstrate unequal expansion in different metals on heating.
- Highlights the role of temperature and materials in practical applications such as in thermostats.
- Consists of a laminated strip of two different metals fitted in a wooden handle.
- The strip is about (l x w), 200 x 10mm.
- Due to differences in the co-efficient of linear expansion of both metals, the laminated strip bends dramatically on heating.
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