Draw a plot showing the variation of (i) electric field (E ) and (ii) electric potential (V) with distance r due to a point charge Q.

Explanation

To solve the problem of plotting the variation of electric field (E) and electric potential (V) with distance (r) due to a point charge (Q), we will follow these steps:

### Step 1: Understand the Formulas
The electric field (E) due to a point charge Q at a distance r is given by the formula:
\[ E = \frac{k \cdot Q}{r^2} \]
where \( k \) is Coulomb's constant.

The electric potential (V) due to a point charge Q at a distance r is given by the formula:
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