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Some Natural Phenomena — Science STD 8 — Question

Gujarat BoardEnglish MediumSTD 8ScienceSome Natural Phenomena1 Mark
Question
Sometimes, a crackling sound is heard while taking off a sweater during winters. Explain.
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Answer

When a sweater is taken off, the woollen sweater gets charged because of the friction between the sweater and the body. Hence, one can hear a crackling sound during the given process.

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