A uniform electric field of magnitude 328 N/C is directed along the +y-axis. A 5.60 µC charge moves from the origin to the point (x, y) = (-20 cm, -30 cm).
(a) What is the change in the potential energy associated with this charge?
1 J

(b) Through what potential difference did the charge move?
2 V


Detailed answers to tough
homework problems