A 2A current is flowing through a circular coil of radius 10 cm containing 100 turns. Find the magnetic flux density at the centre of the coil.

Explanation

To find the magnetic flux density at the center of a circular coil with a given current, radius, and number of turns, we can follow these steps:

### Step-by-Step Solution:

1. **Identify Given Values**:
- Current (I) = 2 A
- Radius (r) = 10 cm = 10 × 10^(-2) m = 0.1 m
- Number of turns (n) = 100
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