Electrostatics - Calculate the repelling force of a charge q

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Homework Help Overview

The discussion revolves around calculating the repelling force exerted by a uniformly charged hemispherical shell on a charge placed at its center. The problem is situated within the context of electrostatics.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants discuss the method of calculating the force by considering contributions from small segments of the hemispherical shell. There is an emphasis on the need for the original poster to articulate their attempts and identify where they are encountering difficulties.

Discussion Status

The conversation reflects a mix of encouragement and insistence on self-reliance, with some participants suggesting that the original poster should attempt the calculations independently before seeking further assistance. There is no explicit consensus on a specific approach yet.

Contextual Notes

Participants note the urgency of the original poster's upcoming physics exam, which may influence their request for help. There is an underlying expectation that the original poster should demonstrate their understanding and efforts before receiving detailed guidance.

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).
 
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10001 said:

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:
 
I just can't do it
:smile:
 
Calculate the force from a little bit of the hemisphere, and then add all the forces from all the little bits. :smile:
 
I know that :smile:
Easy to say :smile:

Now please could you give me a hand.I have my physics exam approaching...
 
10001 said:
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:
 
I did it :smile:
 
:biggrin: Woohoo! :biggrin:​
 

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