Question:
Find the direction of the force on a negative charge for each diagram shown in Fig. 20–52, where $\vec{v}$ (green) is the velocity of the charge and $\vec{B}$ (blue) is the direction of the magnetic field. ($\otimes$ means the vector points inward. $\odot$ means it points outward, toward you.)
Figure 20-52 (a).
Figure 20-52 (b).
Figure 20-52 (c).
Figure 20-52 (d).
Figure 20-52 (e).
Figure 20-52 (f).
Source: Giancoli, Douglas C., Physics: Principles with Applications, 7th Edition, 2014.
Quick Answer:
see video
Giancoli 7th Edition, Chapter 20, Problem 12
(2:36)