Does Mars have a planet-wide magnetic field?
A)Yes, it does.
B)No, because the rotation rate is too slow to produce the necessary electric currents.
C)No, because the core is solid, not liquid.
D)No, because the core, although a liquid mixture of iron and sulfur, does not support electric currents.

Question

Quizplus · Accepted Answer

Mars does not have a planet-wide magnetic field because its core, although a liquid mixture of iron and sulfur, does not support the electric currents necessary to generate such a field.

Does Mars Have a Planet-Wide Magnetic Field