A charge is placed on an insulated conductor in the form of a perfect cube. What will be the relative charge density at various points on the cube (surface , edges, corners ), what will happen to the charge if the cube is in air?

Explanation

To solve the problem, we need to analyze the distribution of charge on a perfect cube conductor and understand how the charge density varies at different points (surface, edges, and corners) when the cube is in air.

### Step-by-Step Solution:

1. **Understanding Charge Distribution**:
- When a charge is placed on an insulated conductor, it redistributes itself on the surface of the conductor. For a perfect cube, the charge will not be distributed uniformly due to the geometry of the cube.

2. **Surface Charge Density**:
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