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تازه های فیزیک و نجوم - ایجاد الکتریسیته ساکن در اثر مالش پشم و کهربا

ایجاد الکتریسیته ساکن در اثر مالش پشم و کهربا

How is Static Electricity Produced?

Static electricity is produced when one object takes negative charges from another object. For example, amber becomes negatively charged when rubbed with wool, because amber attracts negative charges (electrons) and will take them from wool. As a result, the amber becomes "negatively charged," and the wool, due to its loss of negative charges, becomes "positively charged".

The distribution of electrical charges in amber and wool before and after rubbing is shown below:

Amber

Wool

 

Amber

Wool

charge seperation

charge seperation

charge seperation

charge seperation

Amber before rubbing
Equal # of charges
Neutrally charged

Wool before rubbing
Equal # of charges
Neutrally charged

 

Amber after rubbing
More negatives than positives
Negatively charged

Wool after rubbing
More positives than negatives
Positively charged



 

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