A point charge Q is placed at the centre of circular disc of radius r . Calculate the electric flux associated with circular disc.

Explanation

To solve the problem of calculating the electric flux associated with a circular disc when a point charge \( Q \) is placed at its center, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Electric Flux**:
Electric flux (\( \Phi_E \)) through a surface is defined as the product of the electric field (\( E \)) and the area (\( A \)) of the surface, integrated over the surface. Mathematically, it is given by:
\[
\Phi_E = \int \vec{E} \cdot d\vec{A}
...