# Two-point charges and are separated by a distance of 1 m in the air. Calculate at which point on...

## Question:

Two-point charges and are separated by a distance of 1 m in the air. Calculate at which point on the line joining the two charges is the electric potential is zero.

## Coulomb's Law

From Coulomb's law which is known as an inverse-square law is the measure of force between two stationary electric charges. This is given by the form

\begin{align*} F=k\frac{q_1q_2}{r^2} \end{align*} where {eq}\begin{align*} k,q_1,q_2,r \end{align*} {/eq} is Coulomb's constant, the two point charges, and the separation distance respectively. The electric field in this manner follows to be

\begin{align*} E=k\frac{q}{r^2} \end{align*}

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Two point charges are separated by a distance of 1 meter in air. We let the point charges be {eq}\begin{align*} q_1=q \end{align*} {/eq} and...