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Electrostatics - Calculate the repelling force of a charge q

  • Thread starter 10001
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Homework Statement


It is given a hemisperical shell charged uniformally with a density charge equal to s.
Calculate the force by which it repels an electric charge q which is put in its center(in the center of the largest diameter).
 

Answers and Replies

  • #2
tiny-tim
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Welcome to PF!

Homework Statement


It is given a hemisperical shell charged uniformally with a density charge equal to s.
Calculate the force by which it repels an electric charge q which is put in its center(in the center of the largest diameter).
HI 10001! Welcome to PF! :smile:

The rule here is that you show us what you've tried, and where you're stuck … then we'll know how to help you! :smile:
 
  • #3
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I just cant do it
:smile:
 
  • #4
tiny-tim
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Calculate the force from a little bit of the hemisphere, and then add all the forces from all the little bits. :smile:
 
  • #5
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I know that :smile:
Easy to say :smile:

Now please could you give me a hand.I have my physics exam approaching...
 
  • #6
tiny-tim
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Now please could you give me a hand.
No … try it yourself!

This forum is to help you, not to do your work for you! :smile:
 
  • #7
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I did it :smile:
 
  • #8
tiny-tim
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:biggrin: Woohoo! :biggrin:
 

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