The shape of Earth's magnetic field is approximately that of a ____________.
A) monopole
B) dipole (such as that produced by a bar magnet)
C) torus, a donut-shaped ring parallel to Earth's equator
D) quadrupole, which is aligned with the equator

Question

The shape of Earth's magnetic field is approximately that of a ____________. 
A) monopole 
B) dipole (such as that produced by a bar magnet) 
C) torus, a donut-shaped ring parallel to Earth's equator 
D) quadrupole, which is aligned with the equator

Quizplus · Accepted Answer

Earth's magnetic field is generated by the motion of molten iron in its core, creating a dipole with magnetic north and south poles that are not exactly aligned with the geographic north and south poles. This creates a field that surrounds Earth, similar to the field produced by a bar magnet.

The Shape of Earth's Magnetic Field Is Approximately That of a ____________