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Text File  |  1992-09-02  |  481b  |  12 lines
  1. In physics, that property of a substance that
  2. restricts the flow of electricity through it,
  3. associated with the conversion of electrical
  4. energy to heat; also the magnitude of this
  5. property. Resistance depends on many factors,
  6. such as the nature of the material, its
  7. temperature, dimensions, and thermal
  8. properties; degree of impurity; the nature
  9. and state of illumination of the surface; and
  10. the frequency and magnitude of the current.
  11. The practical unit of resistance is the ohm.
  12.