What are limitations of ohms law?

Kiersten Hodge

Kiersten Hodge

Answered question

2022-05-08

What are limitations of ohms law?

Answer & Explanation

tomatoland45wt8wm

tomatoland45wt8wm

Beginner2022-05-09Added 19 answers

Ohm's law states that if the physical properties of a conductor remains unaltered,the current flowing through it is directly proportional to the voltage difference.
So,clearly on increasing the temperature(temperature is a physical property) Ohm's law will not be valid.
We know the relation of resistance and increase in temperature as
R t = R 0 ( 1 + α × t ) (where, R t is the resistance at temperature t R 0 is the resistance at temperature zero and α is a constant)
Again,Ohm's law is given for conductors,so in case of semiconductors Ohm's law will not be applicable.
It's also not applicable for gases and electrolytes.

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