Bar & Gauge Apparatus
Product Code : JLI-PLE-11242
Quick Answer: The Bar & Gauge Apparatus illustrates expansion on heating and contraction on cooling with an iron bar on a handled support rod and a brass gauge whose cut-out and hole admit the bar only while it is cold.
Last updated: 18 October 2026
Key Features
Iron bar on a support rod with wooden handle.
Brass gauge with a cut-out that barely admits the bar lengthways when cold.
Hole in the gauge passes the bar endways only when cold.
Clear visual demonstration of thermal expansion.
Technical Specifications
Specification Value Bar Iron, on support rod with wooden handle Gauge Brass, with cut-out and hole
How It Is Used
The cold bar is first tried in the gauge, then heated in a flame and tried again; it no longer fits until it has cooled, showing expansion in both length and width.
Related Physics Lab Equipment
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For a quotation on the Bar & Gauge Apparatus, contact JLab India on +91-8569909696 .
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