A short bar magne

Earth’s magnetic field at the given place, B = 0.36 G

The magnetic field at a distance d, on the axis of the magnet is given as:

The magnetic field at the same distance d, on the equatorial line of the magnet is given

as:

(NOTE: Refer the pictures of the previous question)

= B₁/2

Hence the total magnetic field is B₁ + B_{2 =} B₁ + B₁/2 = (0.36 + 0.18) G = 0.54 G

The magnetic field is 0.54 G in the direction of earth’s magnetic field.