Reference: Lab Experiments Journal vol-11, No.4, Page-301

Tungsten filament temperature & resistivity

Model: TFR-1101

Experiment(s):

Estimation of filament temperature by the resistivity variation study

Specifications

1 . Tungsten filament resistivity kit

                    Voltmeter:
Digital DC 3½ digit voltmeter
Range: Selectable 0 - 200 mV or 0 - 20 V
Resolution: 0.1 mV or 0.01 V 
Current meter:  Digital DC 3½ digit
Range: Selectable 200 mA or 200 μA
Resolution: 0.1 mA or 0.1 μA  Internally connected circuit with provision for changing load resistance
Load resistance: Selectable from 1 Ω to 80 Ω
Sample: Tungsten Filament bulb
Power supply: Regulated 5 V DC fixed voltage power supply
Rated Input: 220 V/50 Hz or 110 V/60 Hz
                  

2 . Patch cords

                    Set of standard 2 mm patch cords of different lengths with spare cords
                  

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