Question

explain what is electric potential and potential difference

Answer 1

Potential difference between two points through which a current is following is defined as the amount of work done to move a unit charge .it is denoted by V 
V= w/q
electric potential is the amount of work needed to move a unit positive charge from a reference point to a specific point inside the field without producing any acceleration.

Answer 2

Electric Potential

Electric Potential refers to the potential carried by unitbof electrical charges in the electrical field or terminals. By the term 'Potential' we know that the electrical charges have stored some potential energy to flow as soon as some electrical pressure is provided.

Potential Difference

Potential Difference refers to the difference between any two point in the circuit which carry current as workdone to move a unit of charge from one point to other. S.I unit of Potential difference is volt.

Here we define 1 volt as;

Potential difference between two points which made current to flow when 1 Coulumb of charge was displaced by 1 J of work done.

V = W/Q or V = J / C

So 1 V = 1 J/C