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Magnitude of an electric field at two points

  1. Feb 21, 2012 #1
    1. The problem statement, all variables and given/known data
    Compare the magnitude of the electric field at position A with the magnitude of the electric field at position B.

    A) E-Field Magnitude at Point A > E-Field Magnitude at Point B
    B) E-Field Magnitude at Point A = E-Field Magnitude at Point B
    C) E-Field Magnitude at Point A < E-Field Magnitude at Point B

    2. Relevant equations

    The Electric Field:
    http://imageshack.us/f/407/efield.jpg/


    3. The attempt at a solution

    I thought the electric field at A would be stronger because its closer to the charge causing the field, but I got it marked wrong. Can someone explain to me what is the correct answer?
     
  2. jcsd
  3. Feb 22, 2012 #2

    BruceW

    User Avatar
    Homework Helper

    On these types of diagram, what indicates the strength of the electric field?
     
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