Wire coil in liquid nitrogen

Description: A flashlight has been modified by placing a large coil of copper wire in series with the bulb. At room temperature the bulb barely glows. With the coil immersed in liquid nitrogen the bulb glows brightly.

Cautions: liquid nitrogen

Concepts demonstrated:

Equipment:

Setup Time: Short

Difficulty/Commitment: Straightforward

Visibility: visible

Related demonstrations:

References: PIRA 5D20.10
Video Encyclopedia 17-21

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