At a point A on the earth’s surface the angle of dip, δ = + 2 5 ° . At a point B on the earth’s surface, the angle of dip, δ = - 2 5 ° . We can interpret that:

Step-by-step solution

As we know that the angle of dip is the angle between earth's resultant magnetic field from horizontal. At the equator, dip is zero. At Northern Hemisphere, dip is positive. At Southern Hemisphere, dip is negative. Since, the field lines originate from the South Pole, the angle of dip is negative in Southern Hemisphere. Similarly, as the field lines terminate at the North Pole, the angle of dip is positive in Northern Hemisphere.