High School Physics

Limitations of Ohm’s Law

  • Ohm’s law is valid for metal conductors provided the temperature and other physical conditions remain constant.
  • The resistance of the material changes with temperature. Hence for changing temperature the V-I graph for a conductor will be non-linear.
  • Ohm’s law is not applicable to gaseous conductors.
  • It is also not applicable to semiconductors such as germanium and silicon

Also Read: Ohm’s Law | Ohmic conductor and nonohmic conductor

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