____used to measure potential difference between two points in volts.

5J of work is done in moving a positive charge of 0.5C between two points. What is the potential difference between the points?

What is the difference between these two?

Potential difference between two points is 5volt. What do you mean by it?

To study the relation between potential difference and current in an electrical circuit, a student is provided with a resistance wire, a cell and a key- Modify the circuit by introducing an ammeter, Volt meter and a rheostat for varying the potential dif ference across the resistance and to measure that potential difference and the corresponding current.