Describe schematically the equipotential surfaces corresponding to
A single positive charge at the origin.

Explanation

To describe the equipotential surfaces corresponding to a single positive charge at the origin, we can follow these steps:

### Step 1: Identify the Charge and Its Location
- We start by placing a single positive charge \( Q \) at the origin of a coordinate system (0,0,0).

### Step 2: Understand Electric Field Lines
- The electric field lines around a positive charge radiate outward in all directions. This means that the electric field is directed away from the charge.

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