Question

1. Name the unit of potential in S.I.
2. Define the unit of potential in S.I.
3. What is the relation between joule and volt ?

Answer 1

1. Electric potential is defined as the amount of work done to move a unit positive charge from infinity to that point.
2. $electricpotential=\frac{workdone}{charge}$
3. S.I. unit of potential difference is volt(V).
4. 1 Volt of potential difference is defined when 1 joule of work done is done to bring a 1 coulomb charge from infinity to that point.
5. $1Volt=\frac{1joule}{1coulomb}$