If you walk across a nylon rug and then touch a large metal object such as a doorknob, you may get a spark and a shock. Why does this tend to happen more on dry days than on humid days? Why are you less likely to get a shock if you touch a small metal object, such as a paper clip?

Fig.21.30

Transcribed Image Text:

The electric dipolé moment p is directed from the negative end to the positive end of the molecule.