The magnetic field B due to a current- carrying circular loop of radius 12cm at its center is `0.50 xx (10^-4) T`. Find the magnetic field due to this loop at a point on the axis at a distance of 5.0 cm from the centre.

Explanation

To find the magnetic field \( B \) at a point on the axis of a current-carrying circular loop at a distance of 5.0 cm from its center, we can use the formula for the magnetic field along the axis of a circular loop.

### Step-by-Step Solution:

1. **Identify the known values:**
- Radius of the circular loop, \( a = 12 \, \text{cm} = 0.12 \, \text{m} \)
- Magnetic field at the center of the loop, \( B_0 = 0.50 \times 10^{-4} \, \text{T} \)
- Distance from the center of the loop to the point on the axis, \( x = 5 \, \text{cm} = 0.05 \, \text{m} \)
...