Magnetic inclination or Angle of dip: ● 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 ● It is the angle by which the total intensity of the earth’s magnetic field dips or comes out of the horizontal plane; It is different at different places and measured using a “Dip Circle” ● At the magnetic equator, the dip needle rests horizontally at an angle of zero degrees while, at the magnetic poles, the magnetic needle rests vertically, at an angle of 90 degrees. ● At all the other places, the angle of dip is between 0 and 90 degrees.