Question

what is inclination or dip of earth's magnetusm

Answer 1

The angle made by the earth’s total magnetic field, B with the horizontal direction in the magnetic meridian is called as the Magnetic Inclination at that place.

Answer 2

Magnetic dip, dip angle, or magnetic inclination is the angle made with the horizontal by the Earth's magnetic field lines. This angle varies at different points on the Earth's surface.