3. When one takes off woollen or polyester clothes in dark,blank are seen and crackling blank is heard.
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Answer:
because of the friction created between you and your clothes
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Explanation:
When we wear polyester or woolen cloth for a period , charge is stored in cloth due to friction from dry skin , called static electricity . When we remove cloth , this static charge discharges in the surrounding in the form of light and sound , resulting in spark and cracking sound .
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