Science

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Hello


I have an exam coming and my question is :

Why do we sometimes have a tiny electical current ( spark ) when we take our sweater off because of the shirt and jacket rubbing each other , the negative charges will have static electricity

But for an electrical current , it needs and complete circuit and needs a battery , how does the spark happen if there was no battery or a complete circuit ?


thanks

Since this is not my area of expertise, I searched Google under the key words "static electricity" to get these possible sources:

http://www.sciencemadesimple.com/static.html
http://www.school-for-champions.com/science/static.htm
http://en.wikipedia.org/wiki/Electrostatic

In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search.

I hope this helps. Thanks for asking.

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