Stefan-Boltzmann Lamp - TD-8555

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Overview

This 12-Volt incandescent lamp is an excellent source of thermal radiation at high, measurable temperatures. Use it with the Radiation Sensor to investigate:

  • Radiation from a hot object (˜ 3,000 K)
  • The Stefan-Boltzmann Law (R = sT4) at high temperatures (see Note below)
  • The Inverse Square Law for thermal radiation.

The temperature of the lamp filament can be accurately determined by measuring the voltage and current that students supply to the lamp (a graph of temperature versus resistivity is provided). The lamp contacts are soldered to the connectors to minimize voltage loss.

Note: The Stefan-Boltzmann Law can be verified at low temperatures using the Thermal Radiation Cube and the Radiation Sensor. The advantage of the Stefan-Boltzmann Lamp is that the experiment can be performed at temperatures much higher than room temperature, which simplifies the analysis.

Buying Guide

1695
TD-8553
Radiation Sensor
1
50721
SF-9585A
High Voltage Power Supply
1
1581
SE-9786A
Basic Digital Multimeter
2
Required

You will need two (2) of the Basic Digital Multimeter

Radiation Sensor   TD-8553
High Voltage Power Supply   SF-9585A
Basic Digital Multimeter (2 required)   SE-9786A