physicsHave a partner hold a piece of paper close to, but not touching, a hanging U tape. Bring another U tape toward the hanging tape from the other side of the paper, holding both ends of this tape so that it can't swing. Can you observe repulsion occurring right through the intervening paper? This is difficult, because the paper attracts the hanging tape, which masks the repulsion due to the other tape. You can heighten the sensitivity of the experiment by moving the tape rhythmically toward and away from the hanging tape, as though you were pushing a swing. This lets you build up a sizable swing in the hanging tape even though the repulsive force is quite small, because you are adding up lots of small interactions. Using rhythmic movements, are you able to observe repulsion through the intervening paper? The effect is especially hard to observe if you have weak repulsion due to high humidity. The farther away you can detect repulsion, the better, because the competing attraction falls off rapidly with distance. Under good conditions of low humidity, when tapes remain strongly charged and repulsion is observable with the tapes quite far apart from each other, it is possible to see repulsion with the paper in place, showing that electric field does go right through intervening matter. You have seen evidence of this when you observed attraction between a tape and your hand even when you approached the slick side of the tape. 7th Edition•ISBN: 9780323527361Julie S Snyder, Mariann M Harding2,512 solutions
7th Edition•ISBN: 9780323087896 (1 more)Julie S Snyder, Linda Lilley, Shelly Collins388 solutions
4th Edition•ISBN: 9781264154371David M Allan, Rachel Basco404 solutions
5th Edition•ISBN: 9781260440119Mark Dutton475 solutions