Need help finding electric field

AI Thread Summary
To find the electric field at a distance of 0.4 nm from a nitrogen nucleus, the formula for the strength of a radial electric field due to a point charge should be used. The nitrogen nucleus has 7 protons, so the charge must be calculated using the charge of a proton. The user previously calculated the electric field as 6.3E10 but needs assistance recalculating it for a distance of 0.2 nm. Resources like HyperPhysics or Google can provide the necessary equations and constants for the calculation. Understanding the relationship between distance and electric field strength is crucial for solving this problem.
astru025
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Homework Statement



What is the electric field at a distance of 0.4 nm from a nitrogen nucleus containing 7 protons and 7 neutrons?


Homework Equations



I got the answer 6.3E10 but I do not remember how I got to that answer and now I need to do this same problem but at a distance of .2 nm instead of .4 nm! Any help would be nice!


The Attempt at a Solution


Thanks!
 
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You need to look up the formula for the strength of a radial electric field (field due to a point charge). Try hyperphysics or just plain old google. You'll also need to know the charge on a proton to put into your calculation.
 

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