Conductivity Bars

Supplier: VWR International

Conductivity Bars

Conductivity Bars

P20027A

470148-708CS 8012.9 CAD

470148-708

Conductivity Bars

Educational Materials Physics Educational Materials Heat/Thermodynamics Learning Activities

This new conductivity bar set features sensitive liquid crystal temperature indicators, which are attached to the front of each of four metal bars.

Four Bars of Copper, Aluminum, Brass, and Steel
Each Bar's Cross Sectional Area Measures 30 mm
Sensitive Liquid Crystal Temperature Indicators
Temperature Indicators Marked at 1 cm Intervals
Users Estimate Relative Conductivities

The four bars of copper, aluminum, brass, and steel are firmly held parallel to one another in a rigid, molded carrier. Each bar has a cross-sectional area of 30 mm, and its conductivity value is marked on the back of the support. Temperature indicators are marked at 1 cm intervals.

Within seconds of placing the ends of the bars in hot water, a visible "heat pulse" travels up the copper bar while the steel bar takes several minutes to conduct heat to its upper end. Timing the impulses enables estimates of the relative conductivities to be made for comparison with the given theoretical values.

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