Coulomb's Law states $\displaystyle {F}={k}\frac{{{p}{q}}}{{r}^{{2}}}$ where F is the electric force, k is Coulomb's constant, p and q are electrical charges, and r is the distance in meters.

Rewrite the law by solving for q.

First step is to move the $\displaystyle {r}^{{2}}$, the equation would become

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