Find : (i)Electric field intensity due to an infinitely long uniformly charged, straight conductor , at a perpendicular distance d from rod.
(ii)Electric field intensity at a point on perpendicular bisector of uniformly charged rod of length l and charge Q at a distance d from the centre of rod.

Explanation

To solve the problem, we will break it down into two parts as specified in the question.

### Part (i): Electric Field Intensity Due to an Infinitely Long Uniformly Charged Straight Conductor

1. **Understanding the Setup**: We have an infinitely long straight conductor with a uniform charge density denoted by λ (lambda) per unit length. We want to find the electric field intensity (E) at a perpendicular distance (d) from the conductor.

2. **Electric Field Formula**: The electric field intensity (E) due to an infinitely long charged rod can be derived using Gauss's law. The formula is given by:
\[
...