The device is made out of two M.S. plates, Bakelite, brass, and aluminium. A composite wall is created by these plates arranged in sequence on either side of the heater. The entire piece is secured in a frame that is visible through the Perspex sheet. We can determine the conductivity and resistance of the composite walls thanks to the thermocouple tapings.

SPECIFICATIONS:

• Heater- Mica healer of dia. 250 mm.
• Plates-

a) M.S. plates of thickness 25mm & dia. 250mm.-2 nos.

b) Bakelite plates of thickness 10mm & dia. 250mm.-2 nos.

c)Brass/Aluminum plates of thickness 15mm & dia. 250mm.-2nos

• Dimmerstat – 2 A capacity.
• Measurements —

a) voltmeter and an Ammeter to measure input power.

b) Multichannel digital temperature indicator to measure temperatures at- various points.

A technical manual accompanies the unit.

SERVICES REQUIRED:

• 230 V, A.C. stabilized supply along with earthing connection.
• Bench area Im x lm x 0.5m height