A circular current carrying loop of radius R, carries a current l. The magnetic field at a point on the axis of coll is `(1)/(sqrt(8))` times the value of magnetic field at the centre. Distance of point from centre is

Options

A. `(R )/(sqrt(2))`
B. `(R )/(sqrt(3))`
C. `Rsqrt(2)`
D. R

Explanation

To solve the problem, we need to find the distance from the center of a circular current-carrying loop to a point on its axis where the magnetic field is \( \frac{1}{\sqrt{8}} \) times the magnetic field at the center of the loop.

### Step-by-Step Solution:

1. **Magnetic Field at the Center of the Loop**:
The magnetic field \( B_c \) at the center of a circular loop of radius \( R \) carrying a current \( I \) is given by the formula:
\[
B_c = \frac{\mu_0 I}{2R}
...