Previous Next

Thermoelectric Pair
# 4A10.31

Description: A piece of nickel and brass have connected at one end. When heat is applied to the junction, a small electric potential difference is produced.

Instructions: Turn the hot plate on to a high heat (~300 deg F). Allow the hot plate a few minutes to heat up. Put the voltmeter on the mV setting and connect the wires from the meter to the thermocouple. Place the thermocouple in contact with the hot plate. Obviously, the thermocouple will get hot quickly, so you can hold the wires connected to the thermocouple without burning yourself. The meter should read 1-3 mV.

Hazards: The hot plate and thermocouple are very hot!

Parts: Thermocouple Hot plate Connecting wires voltmeter (with mV scale)

Purchased/Built: purchased

Setup Time: 5 min

Quant. in Demo Room: 1

Demo References
Sutton H-7 Make a thermocouple and demonstrate it if you are going to use it in thermoelectricity.

Keyword Search:
complete words only, or parts of other words?

Home Manual Demo Suggestions

NCSU Physics Demonstrations
© 2010, North Carolina State University Department of Physics. The design of this site nor the
contents may be copied without the express written permission of the NC State University Department of Physics.

North Carolina State University
All Rights Reserved, 2011