Stefan's Law of Radiation by using an Incandescent Lamp with Power Supply and 2 digital meters (C.R.) Manufacturer,Supplier and Exporter in India
Product Code : SCL-EELE-12298
Indian Lab Suppliers supplies the Stefan's Law of Radiation by using an Incandescent Lamp with Power Supply and 2 digital meters (C.R.) (Product ID: 12298) as part of its electronics engineering lab equipment range. It verifies Stefan’s law of radiation using the filament of an incandescent lamp as the radiator.
Quick Answer
The lamp is fed from a 0-6 V DC, 2 A IC-regulated, short-circuit-protected supply with coarse and fine controls. The DC voltmeter (60 mV and 6 V ranges) and DC current meter (30 mA and 3 A ranges) have low ranges for measuring the cold filament resistance and high ranges for normal running. From the resistance ratio students find the filament temperature, and the electrical power V × I, equal to the radiated power at equilibrium, is plotted against temperature on log-log axes; a slope near 4 verifies Stefan’s law. The name lists digital meters while the parts list gives 65 mm rectangular dial meters, so please confirm the meter type at quotation.
Key Specifications
| Parameter | Detail |
|---|---|
| Experiment | Verification of Stefan’s law of radiation |
| Power supply | 0-6 V DC at 2 A, IC regulated, short-circuit protected, coarse and fine control |
| Voltmeter | DC, 60 mV and 6 V ranges (65 mm rectangular dial; type to be confirmed) |
| Current meter | DC, 30 mA and 3 A ranges (65 mm rectangular dial; type to be confirmed) |
| Radiator | Incandescent lamp |
| Mains | 230 V ±10%, 50 Hz AC; ON/OFF switch, fuse and indicator lamp |
| Other apparatus | None required |
Where This Is Used
Used in heat-radiation practicals at undergraduate level. Similar set-ups: Study of Variation of Total Thermal Radiation with Temperature with power supply and 2 dual range meters (C.R.) (Product ID: 12266) and Temp. of a torch bulb filament by its resistance measurement with Power Supply and 2 digital meters (C.R.) (Product ID: 12296). Browse the full Electronics Engineering Lab Equipment range or related Physics Lab Equipment products.
Frequently Asked Questions
Why do the meters have very low ranges?
To measure the cold filament resistance at small current without heating it.
What slope confirms Stefan’s law?
A log-log slope of about 4 for power against temperature.
Is the lamp hot during use?
Yes; let it cool before touching it.
Related Categories
Electronics Engineering Lab Equipment · Physics Lab Equipment · Electronics Lab Equipment
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