Question

sometimes ,a cracking sound is heard while taking off a sweater during winter .explain?​

Answer 1

Answer:

it is because of the electrostatict energy is generated when sweater is rubbed for a long time with yr hand.the wool sweater releases the electrons which cause this effect

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Answer 2

Answer:

When we take out sweater, Woolen sweater gets charged due to friction between the sweater and the body. This results in crackling sound.