Electric potential at any point in equatorial plane of a dipole is ………. .

Explanation

To solve the problem of finding the electric potential at any point in the equatorial plane of a dipole, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Dipole Configuration**:
- A dipole consists of two equal and opposite charges, +Q and -Q, separated by a distance of 2a. The midpoint between the charges is the origin of the dipole.

2. **Identify the Equatorial Plane**:
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