PURPOSE: To demonstrate production and use of thermoelectric current.
DESCRIPTION: One junction of the thermocouple is kept at the temperature of ice, and the other heated by a burner, thus generating a large thermoelectric current. The current forms a single loop through the two sections of an electromagnet. The bottom section is a 5 kG mass, which can be supported by the magnetic field created by the thermoelectric current when the device is lifted by the hook on the top section.
SUGGESTIONS:
REFERENCES: (PIRA 5E50.30) See Demonstration Reference File for further information.
EQUIPMENT: Thermoelectric magnet, beaker of ice water, burner.
SETUP TIME: 5 min.
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