## College Physics (4th Edition)

The magnitude of the force on the charge is $0.72~N$ and this force is directed to the east.
We can find the force exerted on the point charge: $F = E~q$ $F = (1.2\times 10^6~N/C)(-0.60\times 10^{-6}~C)$ $F = -0.72~N$ Since the direction of the electric field points to the west, the direction of the force on the sphere is to the east. The magnitude of the force on the charge is $0.72~N$ and this force is directed to the east.