What is meant by saying that the potential difference between two points is `1 V` ?

Explanation

To understand what is meant by saying that the potential difference between two points is `1 V`, we can break it down step by step:

### Step 1: Define Potential Difference
Potential difference (voltage) between two points, say A and B, is defined as the difference in electric potential energy per unit charge between those two points.

### Step 2: Assign Potentials
Let the electric potential at point A be \( V_A \) and at point B be \( V_B \). The potential difference \( V \) between these two points can be expressed as:
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