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STEFAN’s CONSTANT (BLACK BODY RADIATOR)

Experiment(s):

1. Determination of Stefan constant and verification of Stefan-Boltzmann Law (4th power law)



Specifications:

a) Black body radiator kit
Power supply: 0-7 V DC
variable & Short circuit protected
Volt meter: Digital DC 3½ digit
Range: 20 V
Resolution: 0.01 V
Current meter: Digital DC 3½ digit
Range: 2 A
Resolution: 0.01 A
Black Body: 26 mm blackened
by chemical treatment
Heater: Resistance type
Rated Input: 220 V/50 Hz
or 110 V/60 Hz
Power Consumption: < 50W
Cabinet: Acrylic body,
aluminium bottom

b) Temperature sensor
Range: 200 °C
Resolution: 0.1°C
Temperature sensor probe:
mounted on surface of black body
Rated Input: 220 V/50 Hz
or 110 V/60 Hz
Power Consumption: < 20 W

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