Question

give limitations of ohms law

Answer 1

Ohm's law is not a fundamental law of nature. There are a number of commonly used circuit elements which do not obey this law. They have one or more of the following properties:

1. V depends on I non-linearly.

2. The relationship between V and I depends on the sign of V for the same absolute value of V.

3. The relation between V and I is non-unique, that is, for the same current I, there is more than one value of voltage V.