Plot a graph showing the variation of coulomb force (F) versus 1/r2 , where r is the distance between the - Physics - Units and Measurements

Question

Plot a graph showing the variation of coulomb force (F) versus 1/r2
, where r is the distance between the two charges of each pair of
charges: (3µC, 2µC) and (6µC, –3µC)
Interpret the graphs obtained Ans: Interpretation: magnitude of the
slope is proportional to the strength of the force Sign of the
slope indicate the nature of the force Positive slope indicate
repulsive forces (like charges) and negative slope indicate
attractive force(unlike charges)

Sanat K Mukherjee · Accepted Answer

Dear Student,
The graph showing the plots of force versus 1/r2 for the pair of
charges are shown below:
<img alt="" src=
"https://s3mn%20mnimgs%20com/img/shared/content_ck_images/ck_5c98fd09ca2b9%20jpg">So,
the force due to like charges are repulsive while that of oppposite
charges are attractive in nature
Regards