What are the limitations of Ohm’s law?

Following are the limitations of Ohm’s law:

  • Ohm’s law is not applicable to semiconductors. Non-linear circuit elements made of semiconductors, e.g. diode, transistor, etc., do not strictly obey Ohm’s law.

  •  Ohm’s law is valid for conductors at constant temperature. The V-I curve is non-linear for conductors with varying temperature conditions.

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