Plot a graph showing the variation of coulomb force

Asked by admin @ 13/08/2021 in Physics viewed by 298 People

plot the graph showing the variation of coulomb force (F)versus 1/r2 ,where r is a distance between two charges of each pair of charge. (1 micro coulomb,-3micro coulomb).interpret the graph obtained

Answered by admin @ 13/08/2021

I think , your question is -------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:(1μC,2μC) and (2μC,-3μC).Interpret the graphs obtained.

solution :- according to Columbus force ,
$\bold{F\propto\frac{Q_1Q_2}{r^2}}$
Here Q₁ and Q₂ are the charge separated in r distance .

hence, force , $F_A$ act between 1μC and 2μC , $\bold{F_A\propto\frac{2}{r^2}}$
Similarly,force $F_B$ act between 2μC and -3μC , $\bold{F_B\propto\frac{-6}{r^2}}$

Now, here you can see that, $|F_B|\ \textgreater \ |F_A|$

Hence, graph between F and 1/r² , will be straight line where line B has higher slope than line A as shown in figure

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