\(\,F\,\, = \,\,\frac{1}{{4\pi \,\,{ \in _0}}}\,\,\frac{{7\,\, \times \,\,{{10}^{ - 6}}\,\, \times \,\,7\,\, \times \,\,{{10}^{ - 6}}}}{{{r^2}}}\,\, = \,\,\frac{1}{{4\pi \,\,{ \in _0}}}\,\,\frac{{35\,\, \times \,{{10}^{ - 12}}}}{{{r^2}}}\,\,........\left( 1 \right)\)

ઉમેર્યા પછી 

\(\,F\,'\,\, = \,\,\frac{1}{{4\,\pi \,{ \in _0}}}\,\,\frac{{5\,\, \times \,\,{{10}^{ - 6}}\,\, \times \,\,7\,\, \times \,\,{{10}^{ - 6}}}}{{{r^2}}}\, = \,\,\frac{1}{{4\pi \,\,{ \in _0}}}\,\,\frac{{35\,\, \times \,\,{{10}^{ - 12}}}}{{{r^2}}}\,\,.........\left( 2 \right)\)

સમીકરણ \(\left( 1 \right)\,\, = \,\,\left( 2 \right)\)

તેથી બળો સમાન છે.