A point charge `q` is located at a distance `l` from the infinite conducting plane. What amount of work has to be performed in order to slowly remove this charge very far from the plane.

Explanation

To solve the problem of calculating the work done to slowly remove a point charge \( q \) located at a distance \( l \) from an infinite conducting plane, we can follow these steps:

### Step 1: Understand the System
We have a point charge \( q \) placed at a distance \( l \) from an infinite conducting plane. When a charge is near a conducting plane, it induces a charge on the plane, which can be modeled using the method of images.

### Step 2: Use the Method of Images
To simplify the problem, we can replace the conducting plane with an imaginary charge of \(-q\) located at a distance \( l \) on the opposite side of the plane. This means we have:
- The real charge \( q \) at position \( (0, 0, l) \)
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