A point charge developes an electric field of 40 N/C and a potential difference of 10 J/C at a point. Calculate the magnitude of the charge and the distance from the point charge.

Explanation

To solve the problem, we need to calculate the magnitude of the charge (q) and the distance (r) from the point charge, given the electric field (E) and the potential difference (V) at a point.

### Step-by-Step Solution:

1. **Identify the Given Values:**
- Electric Field, \( E = 40 \, \text{N/C} \)
- Potential Difference, \( V = 10 \, \text{J/C} \)

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