How do I know when to use the charge density or not in a Gauss problem?

  • Thread starter Parad0x88
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  • #1
Parad0x88
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I feel that I'm always struggling with these kinds of problems since I never know if the information is to be considered a density or not. Is there any trick/key words I should be on the look-out to determine whether they gave me a density charge or a point charge?
 

Answers and Replies

  • #2
36,020
12,919
Look at the units.
Coulomb -> point charge
Coulomb per volume (or area, or length) -> charge density per volume (or area, or length)
 

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