The earth’s magnetic field lines resemble that of a dipole at the centre of the earth. If the
Channel: Doubtnut
Date: 2020-08-23

The earth’s magnetic field lines resemble that of a dipole at the centre of the earth. If the magnetic moment of this dipole is close to  `8 x× 10^(22) Am^(2)`, the value of earth’s magnetic  field near the equator is close to (radius of the earth = `6.4 × 10^(6) m)`