Question

DEFINE POTENTIAL DIFFERENCE BETWEEN TWO POINTS IN AN ELECTRIC CIRCUIT. STATE ITS S.I. UNIT.

Answer 1

Electric current is the flow of charged particles in a conductor. The electrons move only if there is a difference called the potential difference along the conductor. The difference of potential can be produced by a battery consisting of one or more cell.

We define electric potential difference between two points in an electric circuit carrying some current, as the work done to move a unit charge from one point to the other-

V=W/Q

Where V = potential difference between two points

W =Work done

Q=charge

SI unit is volt (V).