The magnetic moment of a current loop is $2.1 × 10^{-25} A m^2$. The magnetic field on the axis of the loop at a distance of 1.0 Å from the loop would be: (Given radius of loop negligible) |
$24×10^{-2} T$ $2.4×10^2 T$ $4.2 × 10^{-2} T$ $42×10^2 T$ |
$4.2 × 10^{-2} T$ |
The correct answer is Option (3) → $4.2 × 10^{-2} T$ |