?

SAT® Subject Test in Physics

Free Version

Upgrade subject to access all content

Moderate

Force on Three Moving Charges

SATPHY-EKCA7I

Three different identical positively charge particles are pictured in the same magnetic field which points into the screen (represented by blue X's). The particles are moving at the same speeds but in different directions, as indicated by the red arrows.

How do the particles rank, in terms of the force they experience due to their movements in the magnetic field, greatest first?

A

1, 2, 3

B

1 and 2 tie, 3

C

3, 1 and 2 tie

D

3, 2, 1

E

all tie