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Electricity and magnetism question

  1. Mar 2, 2005 #1
    I'm having trouble starting this problem... I'm pretty sure I'll be able to figure it out if I can just get past the first question.

    I scanned the sheet because I'm lazy and I thought that you'd be able to understand the problem better that way anyways.

    So if someone could just point me in the right direction (which way to go about this problem and why) and I think I'll be set.

    Here's the sheet:

  2. jcsd
  3. Mar 2, 2005 #2

    Andrew Mason

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    Science Advisor
    Homework Helper

    The electric force on the drop is upward and equal to its weight. Work out the force from the electric field (ie. E = force/unit charge).

    The rest is pretty basic.

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