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Electrostatics And The Transfer Of Electrons


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#1 GenerX

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Posted 12 February 2018 - 10:07 AM

If I take a piece of rubber and rub it against a piece of wool and then take that piece of negatively charge rubber and touch it to metal, would the electrons become trapped on the surface of the metal until a positively charged piece of material interacts with it?



#2 Vmedvil

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Posted 16 February 2018 - 07:01 PM

If I take a piece of rubber and rub it against a piece of wool and then take that piece of negatively charge rubber and touch it to metal, would the electrons become trapped on the surface of the metal until a positively charged piece of material interacts with it?

 

This is actually one of the first experiments you do in Physics 101 or 201 but yes trapped until they move to a lower "Negative" potential difference anything with a lower voltage or "Charge" than the object will cause electrons to low off the surface including gasses if it can overcome the resistance of moving across the surface into the other surface or substance that flow being a current.

 

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If Voltage  is a large amount so too is the value of difference between the two objects' charges, one being much more charged than the other, or oppositely charged from each other.

 

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Edited by Vmedvil, 21 February 2018 - 06:37 AM.