Question

state Ohm's law, condition for its validity. what will be the nature of the graph between potential difference and current . name the physical quantity that can be obtained from a graph​

Answer 1

Answer:

Ohm's law states that at a constant temperature, current 'I' through a conductor between two points is directly proportional to the potential difference or voltage 'V', across the two points. That is, V = IR. The necessary condition is that the temperature ahould be constant. The nature of the graph is a straight line.