Linear expansion in metals

a) Test stand

Slidable uprights (2 nos) on a rigid aluminium stand
Height adjustable uprights to fix sample rods
Dial type micrometer to measure linear expansion
Heating: Ceramic probe type
heating, 35 W heater

b) Sample rods

Copper: Length 400 mm
Brass: Length 400 mm
Aluminium: Length 400 mm
Iron: Length 400 mm

c) Heater

Probe heating power supply
Output: 35 W
Rated Input: 220 V/50 Hz or 110 V/60 Hz
Power Consumption: <60 W

d) Thermometer

Type: 2 Channels
Display: LCD
Range: 200 °C
Resolution: 0.1 °C