posted by fatih on .
true or false
a small plastic ball has an excess negative charge on it. if a magnet is placed close to this ball, it will either attract or repel the ball, depending upon which pole is closer to the ball.
False. Excess charge generates an E (electric)field around the ball, but a B (magnetic) field is required to interact with a magnet. B fields are generated by currents or magnetic dipoles.