If a proton is released at the equator and falls toward the Earth under the influence of gravity,the magnetic force on the proton will be toward the:
A)north.
B)south.
C)east.
D)west.

Question

Quizplus · Accepted Answer

When a proton falls toward the Earth at the equator, it moves in a direction opposite to the Earth's gravitational pull, i.e., vertically upward from the Earth's surface. The Earth's rotation causes the magnetic field lines to be horizontal and point from south to north at the equator. According to the right-hand rule, if you point your fingers in the direction of the proton's velocity (upward) and curl them towards the direction of the magnetic field lines (north), your thumb will point to the east. Therefore, the magnetic force on the proton will be directed toward the east.

If a Proton Is Released at the Equator and Falls