Woollen or synthetic sweaters develop static charges (electrons) on them due to friction. While taking off our sweater, these charges move in streams between the sweater and our body, i.e. electric discharge takes place. This results in crackling sound and miniature sparks of lightning.
Because of constant friction and rubbing, the sweater gets charged. While taking off the sweater it discharges and transfer of electrons takes place. This creates the crackling sound.
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Answer:
Woollen or synthetic sweaters develop static charges (electrons) on them due to friction. While taking off our sweater, these charges move in streams between the sweater and our body, i.e. electric discharge takes place. This results in crackling sound and miniature sparks of lightning.
Because of constant friction and rubbing, the sweater gets charged. While taking off the sweater it discharges and transfer of electrons takes place. This creates the crackling sound.
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