Draw a graph to show the variation of E with perpendicular distance r from line of charge.

Explanation

To draw the graph showing the variation of electric field \( E \) with the perpendicular distance \( r \) from a line of charge, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Concept of Line Charge**:
- A line charge is a distribution of charge along a straight line. The linear charge density \( \lambda \) is defined as the charge per unit length, given by \( \lambda = \frac{Q}{L} \), where \( Q \) is the total charge and \( L \) is the length of the line.

2. **Determine the Electric Field Expression**:
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