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Neutral Point between charges

  1. Jan 17, 2015 #1
    Hello , If i was given two or three charges separated , and they all lie on the same straight line ... how can I identify the neutral point ?

    * Take any value for their separation , their charges and sign if you want to give an example ,, just a general question
     
  2. jcsd
  3. Jan 17, 2015 #2

    Orodruin

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    How about writing down the potential as a function of the position and minimising/maximising it?
     
  4. Jan 17, 2015 #3
    sorry but didnt understand you
     
  5. Jan 17, 2015 #4

    Orodruin

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    Try to answer the following: What is the electric potential from a point charge? How does the electric potential change when you add another charge? What is the defining property of a stable point?
     
  6. Jan 17, 2015 #5

    jtbell

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    What level of education and mathematics are you at? (It always helps to say this at the beginning.)
     
  7. Jan 17, 2015 #6
    grade 12 (senior)
     
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