Question

What is meant by the term potential difference between two points?

Answer 1

Concept Used: Work done

Body of the solution:

Potential difference between two points is defined as the amount of work done in moving one unit positive charge from one point to another. The SI unit of potential difference is volt and it is denoted by $\mathrm{V}$.

$\mathrm{Potential}\mathrm{difference}\mathrm{between}\mathrm{two}\mathrm{points}\mathrm{A}\mathrm{and}\mathrm{B},\mathrm{V}=\frac{{\mathrm{W}}_{\mathrm{B}}-{\mathrm{W}}_{\mathrm{A}}}{\mathrm{q}}$

where, $W_A,W_B$ are work done in moving charge $\mathrm{q}$ from infinity to point $\mathrm{A}$ and $\mathrm{B}$ respectively.