Answer
a. No force
b. Downward
c. Upward
d. Into the page/screen
e. To the left
f. To the left
Work Step by Step
Use the right hand-rule, as described on page 566, to calculate the direction of the force on a positively -charged particle. Since this charge is negative, the answer we want is OPPOSITE to the result given by the right-hand rule.
(Some instructors advocate the use of a “left-hand rule” for negative charges, which also works.)