2013_2BF_2B314_2BHW_2B1_2Bsolutions

D except deliberate rubbing with the rotating ball

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Unformatted text preview: the gentleman wears affects if he is charged by the glass ball or not. We have already established that the glass ball machine is ineffective, even with silk stockings. Therefore, it should also remain that the gentleman remains uncharged if he was wearing cotton socks. There should be spark. 8. The sparks would probably get larger if – instead of silk – the gentleman were wearing wool socks or stockings. FALSE In this case, there is no way the sparks would get larger. Recall the triboelectric series that wool accumulates charge better than silk, so regardless of whether the glass ball is effective or not, the potential difference would either remain the same or become smaller (remember the woman is still charged from walking across the carpet). 9. To avoid or reduce sparks between their bodies,...
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