Electrons physics homework

  • Thread starter mimictt
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  • #1
mimictt
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Hello everyone! I'm having a problem with this question from my book...

How many electrons have been removed from a positively charged electroscope if it has a net charge o 7.5x10^-11 C?

Can someone explain to me how to solve this problem>?
Thank you very much!
 

Answers and Replies

  • #2
Feldoh
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Hello,

What is the charge of a single electron? What about two? What about an arbitrary number call it "x" electrons?
 
  • #3
Doc Al
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What's the charge on each electron?
 
  • #4
mimictt
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it's 1.6x10^-19 C

so does it mean that 7.5x10^-11/ 1.6x10^-19 is the number of electrons?
 
  • #5
mimictt
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oh i think i got it! thank you so much!!
 
  • #6
Feldoh
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it's 1.6x10^-19 C

so does it mean that 7.5x10^-11/ 1.6x10^-19 is the number of electrons?

yes!
 

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