The angle of dip at the magnetic poles of the earth is
- A0
∘ - B45
∘ - C90
∘ - D135
∘
Solution & Step-by-step Explanation
The angle of dip (or magnetic inclination) is the angle that the Earth's total magnetic field lines make with the horizontal surface plane.
At the magnetic equator, the magnetic field lines run parallel to the ground surface, so the angle of dip is 0
∘
.
At the magnetic poles, the magnetic field lines point vertically straight down into or out of the ground, so the magnetic needle stands completely vertical. Therefore, the angle of dip at the magnetic poles is 90
∘
.
At the magnetic equator, the magnetic field lines run parallel to the ground surface, so the angle of dip is 0
∘
.
At the magnetic poles, the magnetic field lines point vertically straight down into or out of the ground, so the magnetic needle stands completely vertical. Therefore, the angle of dip at the magnetic poles is 90
∘
.