Voltmeter, tapered resistors

 

Code Number: 5D10.15

Demo Title: Resistors - Characteristics of Tapered Resistors

Condition: Excellent

Principle: Principles and Varieties of Resistors

Area of Study: Electricity & Magnetism

Equipment: 

Voltmeter, tapered resistors (the tapered resistors we use are from old Duracell batteries).

Procedure:

Lay the tapered resistor on the table with the resistor side up.  Measure at different points of the resistor to show an increasing resistance with a widening of the resistance strip.

References:

  • Wei-Min Chen, "The Limit on the Integral", TPT, Vol. 38, #2, Feb. 2000, p. 71.
  • Jouni Viiri and Lasse Kettunen, "Temperature Profile of the Duracell® Test Strip", TPT, Vol. 34, #5, May 1996, p. 276.
  • Paul Chagnon, "What Do Battery Tester Test?", TPT, Vol. 34, #1, Jan. 1996, p. 16.
  • Roy W. Clark and Judith M. Bonicamp, "Tapered Resistors", TPT, Vol. 33, #6, Sept. 1995, p. 340.
  • "Newton's Yo-Yo, A Square Sprinkler, and a Disposable Battery Tester", TPT, Vol. 28, #8, Nov. 1990, p. 570.
  • Leonard M. Kahn, "Demonstration of Resistance", TPT, Vol. 25, #1, Jan. 1987, p. 34.