At a point from the center of a small bar magnet along its axial line

PHYSICS · Subjective · CBSE · Physics · Moving Charges and Magnetism · Moving Charges and Magnetism

Problem

At a point

0.10\,\text{m}

from the center of a small bar magnet along its axial line, the magnetic field magnitude is measured to be

12\,\mu\text{T}

. Determine the field magnitude at a point on the same line that is

0.30\,\text{m}

from the magnet’s center.