8)
FIGURE 2 2 Work done on a test charge q
by the electrostatic field due to any given
charge configuration is independent
of the path, and depends only on
its initial and final positions FIGURE 2 3 Work done in bringing a unit
positive test charge from infinity to the
point P, against the repulsive force of
charge Q (Q > 0), is the potential at P due to
the charge Q