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Unformatted text preview: Solution for Lab Quiz 3 Electric Force and Devices Solution to Lab Quiz Problem 3.1(Static Cling) Problem: Sometimes when clothes are taken out of a dryer they stick together. Select the following response that best explains why. Select One of the Following: (a) The rubbing of the dryer makes the clothes all gain a positive charge which causes them to stick to each other. (b) The rubbing of the dryer makes the clothes all gain a negative charge which causes them to stick to each other. (c-Answer) The rubbing in the dryer made the clothes have charges of different sign so they stick to- gether. (d) Clothes never stick together when they come out of the dryer. (e) Because leftover soap from the wash, when heated, forms a sticky resin that makes clothes stick to- gether. Solution When the dryer tumbles the clothes around, they rub to- gether, removing electrons from some articles adding elec- 1 trons to others. Most clothing is made of dielectric ma- terials, so any net charge on the clothes stays put. Some articles will gain a net negative charge, others will gain a net positive charge. Since opposites attract, two pieces of clothing with opposite net charges will cling together....
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- Spring '10
- Force, Electric charge, net charge, Lab Quiz Problem