OHM'S LAW

Ohm's law:

The concept of ohm's law was proposed by Georg Simon Ohm and so it is named as Ohm's law.

It states that the current flowing through a conductor is directly proportional to the potential difference across the ends of the conductor and inversely proportional to the resistance.

I=V/R

here,

I-current

V-potential difference

R-resistance

Ohm's law cannot be applied to

Magnetically coupled circuits such as Transformers
Vacuum tubes
Gas filled tubes
Semiconductor devices such as diodes
Transistors
Temperature dependent devices such as thermistors
Photo sensitive devices
Non linear elements

It is applicable for the linear elements only.

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