Steven Brown, Graduate Teaching Assistant at George Mason University. , Numerade Educator

04:53

Inquiry into Physics

Rank the force on each of the point charges $q_{1}$ and $q_{2}$ in the following pairings from most attractive to most repulsive. The separation, $d$, between each pair is given. Explain the reasoning you used to arrive at your rankings.
$$\begin{aligned}
&\text { Pair } 1: q_{1}=+2 \mu \mathrm{C} ; q_{2}=-4 \mu \mathrm{C} ; \text { and } d=10 \mathrm{cm}\\
&\text { Pair } 2: q_{1}=+2 \mu \mathrm{C} ; q_{2}=-2 \mu \mathrm{C} ; \text { and } d=5 \mathrm{cm}\\
&\text { Pair } 3: q_{1}=+3 \mu \mathrm{C} ; q_{2}=+3 \mu \mathrm{C} ; \text { and } d=10 \mathrm{cm}\\
&\text { Pair } 4: q_{1}=-5 \mu \mathrm{C} ; q_{2}=-2 \mu \mathrm{C} ; \text { and } d=20 \mathrm{cm}
\end{aligned}$$

Chapter 7: Electricity