Question

What is ohm's law ? Write any two limitations of it​

Answer 1

Explanation:

The limitations of Ohm's law are outlined below: This law cannot be applied to unilateral networks. A unilateral network has unilateral elements like diode, transistors, etc., which do not have same voltage current relation for both directions of current. Ohm's law is also not applicable for non – linear elements.

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Answer 2

Answer:

Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points.

The limitations of Ohm's law are explained as follows:

This law cannot be applied to unilateral networks. A unilateral network has unilateral elements like diode, transistors, etc., which do not have same voltage current relation for both directions of current.

Ohm's law is also not applicable for non – linear elements. Non-linear elements are those which do not have current exactly proportional to the applied voltage, that means the resistance value of those elements changes for different values of voltage and current. Examples of non – linear elements are thyristor, electric arc, etc.