Potential Difference and Ohm's Law

Potential Difference||Ohm's Law

Graph Between Pontential Difference And Current |Practice Exercise|Verification Of Ohm's Law|Summary

In the figure the potential difference across 6 ohm resistor is 48 V. Then the potential difference between A and B is

State Ohm's law. Draw a labelled circuit diagram to verify this law in the laboratory. If you draw a graph between the potential difference and current flowing through a metallic conductor, what kind of curve will you get? Explain how would you use this graph to determine the resistance of the conductor.

The potential difference across 8 ohm resistance is 48 volt as shownin the figure. The value of potential difference across X and Y point will be

If V is the potential difference between the ends of conductor and l is the current through it, then ohm's law states that

The rate of Joule heat is given by P =V xx I where V is the potential difference across the ends of a conductor and I is the current flowing through it. Does this relation hold for a condutor that does not obey Ohm's law?