A point charge of `0.009 mu C` is placed at origin.
Calculate intensity of electric field due to this point charge at point `(sqrt(2), sqrt(7), 0)`.

Explanation

To solve the problem of calculating the intensity of the electric field due to a point charge at a specified point, we can follow these steps:

### Step 1: Identify the given values
- Charge \( q = 0.009 \, \mu C = 0.009 \times 10^{-6} \, C = 9 \times 10^{-9} \, C \)
- Position of the point where we want to calculate the electric field: \( (x, y, z) = (\sqrt{2}, \sqrt{7}, 0) \)

### Step 2: Calculate the distance \( r \) from the charge to the point
The distance \( r \) from the origin (where the charge is located) to the point \( (\sqrt{2}, \sqrt{7}, 0) \) can be calculated using the distance formula in three-dimensional space:
...