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Homework Help: What is the magnitude of the force on a calcium ion

  1. Apr 10, 2009 #1
    1. The problem statement, all variables and given/known data
    Large electric fields in cell membranes cause ions to move through the cell wall. The field strength in a typical membrane is 1.0x10^7 N/C. What is the magnitude of the force on a calcium ion with charge +e?

    2. Relevant equations
    E = F/q > F = Eq

    3. The attempt at a solution
    Well, I thought that +e = ~1, so F = 1.0x10^7(1)
    So, F would equal 1.0x10^7, but that is not correct.

    Can anyone help me?
  2. jcsd
  3. Apr 10, 2009 #2
    What is +e in C? F=Eq is correct.
  4. Apr 10, 2009 #3
    Is +e the same as e-? Because 1 e- is equal to 1.6x10^-19 C, right?
    So, is that the same for +e?
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