Multimeter, Liquid Nitrogen, Carbon Resistor

Code Number: 5M10.51

Demo Title: T vs. V - Semiconductors

Condition: Excellent

Principle: Temperature vs. Resistance

Area of Study: Electricity & Magnetism

Equipment:

Multimeter, Carbon Resistors, Liquid Nitrogen.

Procedure:

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.

References:

R. G. Hunt and G. L. Salinger, "Qualitative Demonstrations and Experiments Using Liquid Nitrogen", TPT, Vol. 7, # 5, May 1969, p. 289.

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Instructional Resources and Lecture Demonstrations

5M10.51 - T vs. V - Semiconductors

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