Question

6. State Ohm’s law. Write the necessary conditions for its validity. How is this law verified experimentally?

What will be the nature of graph between potential difference and current for a conductor? Name the

​

Answer 1

Explanation:

Ohms 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.The physical quantity that can be determined is the gradient of the straight-line graph which is related to the resistance (R) of the conductor.