Which of the following statements is correct about the angle of dip at various points on Earth?

JAMB Physics 2023 305 views
Source: JAMB · 2023

Which of the following statements is correct about the angle of dip at various points on Earth?

  1. The angle of dip is constant at all points on Earth
  2. The angle of dip is zero at the equator and 90° at the magnetic poles. ✓
  3. The angle of dip is positive in the northern hemisphere and negative in the southern hemisphere.
  4. The angle of dip is greater at higher altitudes than at lower altitudes
Explanation

The angle of dip is the angle a freely hanging magnet makes with the horizontal. At the magnetic equator, the field is horizontal, so the dip is 0°. At the magnetic poles, the field points straight down or up, so the dip is 90°.

So the angle of dip changes from place to place. It is not constant.

Was this explanation helpful?

Something wrong or missing? Tell us — we read every report and fix issues fast.

pastQuestions.ng pastquestions.ng