Electromagnetism Problem, electric charge per unit volume.

AI Thread Summary
The discussion revolves around calculating the average electric charge per unit volume in the atmosphere between 100m and 1000m, given the electric field strengths of 110 V/m and 25 V/m, respectively. The poster expresses confusion about how to approach the problem, particularly in determining the volume between the two heights and how to relate the electric field strength to charge density. They seek guidance on the correct method to calculate the electric charge per unit volume and express their need for assistance. The conversation highlights the challenge of applying theoretical concepts to practical problems in electromagnetism. Overall, the thread emphasizes the importance of understanding the relationship between electric fields and charge density in atmospheric physics.
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Homework Statement



The atmostspheric electric fields at heights of 100m and 1000m above the surface of the eartg are 110 v/m and 25 v/m respectively and are directed downwards. Evaluate the averge electric charge per unit volume in the atmostsphere between these heights. Express your result as the number of ions per unit volume assuming that each ion carries a charge of magnitude 1.6x10^-19

Homework Equations



Value of Epsilon nought

The Attempt at a Solution



I am a little clueless about this problem. I think i may need to calculate the volume of the hollowed sphere between the two values (ie the volume of the 1000m sphere minus the volume of the 100m sphere giving me the total volume inbetween). But this doesn't sound right to me. Then how do i calaculate the electric charge per unit vol. from the electric field strength? Help would be appreciated muchly, i think i only need a prod in the right direction. Thankyou
 
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No-one has no idea how to solve this problem? No idea at all?
 

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