Decrease of Resistance with Decrease in Temperature

Identifier: E&M: C - 020

A dewar of liquid nitrogen rests next to the light bulb apparatus.

Concept Overview:

As a material's temperature decreases, the resistance will also decrease.

Lecturer Procedure

Step(s) to Follow

  1. Turn on the switch.
  2. Submerge bottom of light bulb in liquid nitrogen.

Expected Result

The bulb will get brighter and brighter as the apparatus cools.

Transcript:

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