5D20.30 - Temperature Dependence of Resistance - Carbon Resistors

Code Number:
Demo Title:
Temperature Dependence of Resistance - Carbon Resistors
Temperature vs. Resistance
Area of Study:
Electricity & Magnetism
Multimeter, Banana Cables, Carbon Resistors, and Liquid Nitrogen.

Hook the desired resistor to the Multimeter which is set to the ohms scale.  Immerse the resistor in the liquid nitrogen and observe the dramatic increase in the resistance.

The resistance in the carbon resistors goes UP when immersed in liquid nitrogen.

  • Edward Roob III, Robert F. Bouscher, Ethan I. Kleinbaum, David Sederber, and Gabor Csathy, "Too Cool Two - Service Learning and Faculty Engagement in Physics Outreach", TPT, Vol. 58, #1, Jan. 2020, p. 28.
  • R. G. Hunt and G. L. Salinger, "TPT Notes: Qualitative Demonstrations and Experiments Using Liquid Nitrogen", TPT, Vol. 7, #5, May 1969, p. 289.

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