Question
Draw the graph of variation in potential difference and electric field with distance ' $r$ ' for a point electric charge $Q$.
✓
Answer
Electric potential of a point charge,
$V =\frac{k Q }{r} \text { and }$
electric field $E =\frac{k Q }{r^2}$
$\therefore V \propto \frac{1}{r}$ and
$\text { E } \alpha \frac{1}{r^2}$
In the figure(graph), how electric potential and electric field changes with distance $r$ is shown.
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