Experiment: Seebeck effect (115 V, 50/60 Hz)

Experiment: Seebeck effect (115 V, 50/60 Hz), 8000730 [UE6020500-115], Conduction Phenomena
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Objective: Record characteristics for various thermocouples and determine their sensitivity

If the ends of a metal wire are at different temperatures, since the thermally generated motions of the electrons have different velocities, thermal diffusion will occur between the hot and cold ends of the wire. The current resulting from this diffusion causes the cold end to be negatively charged with respect to the warmer end. The thermal diffusion voltage that arises is proportional to the difference in temperature between the two ends with the constant of proportionality being known as the Seebeck coefficient. If wires of two different metals are joined together, with contact points held at different temperatures, and a voltmeter is connected between the two unjoined ends, the result is a thermocouple. The voltmeter will then display a voltage which is directly proportional to the difference in temperature between the contact points. The experiment investigates this phenomenon with three different combinations of metals.

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Set of 3 Thermocouples, 1017904 [U8557370], Experiment Leads and Cables

Set of 3 Thermocouples

1017904 [U8557370]
Unit price
$ 162.00
Thermometer clip, 1003528 [U8452570], Thermometers

Thermometer clip

1003528 [U8452570]
Unit price
$ 21.00
Set of 10 Beakers,600 ml, Tall Form, 1002873 [U14211], Glassware

Set of 10 Beakers,600 ml, Tall Form

1002873 [U14211]
Unit price
$ 63.00
Magnetic Stirrer with Heater (115 V, 50/60 Hz), 1002806 [U11875-115], Magnetic Stirrers

Magnetic Stirrer with Heater (115 V, 50/60 Hz)

1002806 [U11875-115]
Unit price
$ 721.00
Measurement Amplifier U (115 V, 50/60 Hz), 1020744 [U8557560-115], Measuring Amplifier

Measurement Amplifier U (115 V, 50/60 Hz)

1020744 [U8557560-115]
Unit price
$ 707.00
Digital Multimeter P3340, 1002785 [U118091], Hand-held Digital Measuring Instruments

Digital Multimeter P3340

1002785 [U118091]
Unit price
$ 76.00
Tube Thermometer, Graduated -10 – 110°C, 1002879 [U14295], Thermometers

Tube Thermometer, Graduated -10 – 110°C

1002879 [U14295]
Unit price
$ 10.00
Item No.: 8000730 [UE6020500-115]
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