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How do i find the higher electric field of these two

  • Thread starter Dell
  • Start date
given a ball and an infinite pipe, both with the same radius and same charge density [tex]\sigma[/tex]
what is the total electric field at the meeting point of the 2 if we bring them close together so that they touch at point A?

what i did was:

the ball has spherical symetry and the pipe has cylindrical symetry, so those are the shapes i will use for my gauss law,

since RA=R

for the ball


for the pipe


does this mean that the total field at point A will be 0 since they have the same field in opposite directions?
does that make sense?


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Looks right to me.

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