Magnitude of electric field only on the x-coordinate as `vec(E)=20/x^(2) hat(i) V//m`. Find
(i) The potential difference between two points A (5m, 0) and B (10m, 0).
(ii) Potential at `x = 5` if V at `oo` is 10 volt.

Explanation

To solve the problem, we need to find the potential difference between two points A and B, and the potential at a specific point given the electric field.

### Given:
- Electric field: \(\vec{E} = \frac{20}{x^2} \hat{i} \, \text{V/m}\)
- Point A: \(x_A = 5 \, \text{m}\)
- Point B: \(x_B = 10 \, \text{m}\)
- Potential at infinity: \(V_\infty = 10 \, \text{V}\)

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