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Homework Help: Physics 12 Help

  1. Apr 29, 2015 #1
    1. The problem statement, all variables and given/known data
    Earth actually has an electric field of 1.0 x 10^2 N/C at its surface pointing toward the center.
    (b) Compare Earth's electric field and gravitational field in terms of
    i) direction
    ii) shape
    iii) how it changes as height increases.

    c) What is the largest mass that can be suspended by the electric field of earth if the particle has the elementary charge on it?

    2. Relevant equations

    3. The attempt at a solution
    I already did question (a), it was to find the charge on earth and I got -4.52 x 10^5C
  2. jcsd
  3. Apr 29, 2015 #2


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    Hello PD, welcome to PF :smile: !

    What can I do if I want to help you ?
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