Answer :

ohm`s law holds good when the physical conditions such as tempareture remains constant in case of conductors . but when tempareture varies, ohm`s law is not applicable 
ohm`s law is not applied in case of conduction through semiconductors also

Answer:-

Following are the limitations of Ohm's Law:

Ohm's law is not applicable for unilateral electrical elements like diodes and transistors as they allow the current to flow through in one direction only.

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