Technical data

Linear expansion of metals

Article no: P1042900

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Principle

Metal tubes are heated with steam. The linear expansion of three different metals is determined with the aid of a rotating-shaft pointer. From this the metals' coefficient of linear expansion is determined (Supplementary problem). The use of a rolling-shaft pointer is advantageous because the resulting indication of expansion is frictionless. The functional principle of a rotating-shaft pointer can be easily demonstrated in a simple experiment and studied by the students. The students should do this before they calculate the change in length Δl in "Evaluation".

Benefits

Real stand material for an esecially stable and safe setup
Student-suitable experiment descriptions with reports available

Scope of delivery

Support base, separable for 2 rods	02001-00	1
Stand rods, stainless steel, various sizes	02031-00	1
Stand rods, stainless steel, various sizes	02037-00	2
Boss head	02043-00	3
Ring with boss head, i. d. = 10 cm	37701-01	1
Wire gauze with ceramic, 160 x 160 mm	33287-01	1
Universal clamp	37715-01	1
Collar for linear expansion	04231-55	1
Brass tube	04234-11	1
Iron tube	04234-12	1
Aluminium tube	04234-13	1
Rotating shaft with pointer	04236-01	1
Beaker, 100 ml, plastic (PP)	36011-01	1
Erlenmeyer flask, stopper bed, 100 mlSB 29	MAU-EK17082301	1
Glass tube, straight, l=80 mm, 10/pkg.	MAU-16074541	1
Rubber stopper 26/32, 1 hole 7 mm	39258-01	1
Silicone tubing, various diameters	39296-00	1
Students thermometer,-10...+110°C, l = 180 mm	38005-02	1
Measuring tape, l = 2 m	09936-00	1
Butane burner, Labogaz 206 type	32178-00	1
Butane cartridge C206, without valve, 190 g	47535-01	1
Glycerol, 250 ml	30084-25	1
Boiling beads, 200 g	36937-20	1