Purpose: To show that currents produced by a temperature gradient are large enough to produce a strong magnet.

Hang the thermocouple magnet from a good support. Hook the intake spout to a faucet and run cool water through the coil. Then, while heating the coil bar, move the armature up from the bumpers, making sure that it makes good contact with the coil. Now you may attach more weights to the hook (up to 900 N) as the bar gets hotter. (For more information, see the instructions with thermocouple lifting magnet.)

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