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Homework Help: Please help! Questions about Electricity and Work

  1. Nov 10, 2011 #1
    1. What is the electric field magnitude midway between charges of Q1 = 2 C and Q2 = 9 C separated by 2 m?

    2. How much work does a 9 V battery do in pushing 9 mC of charge through a circuit containing one lightbulb?

    3. Points A and B each have an electric potential of +3 V. How much work is required to take 1 mC of charge from A to B?

    1. The problem statement, all variables and given/known data

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
  3. Nov 10, 2011 #2


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    Staff: Mentor

    Hi Fluffy22,
    you need to show some effort at solving the problems before help can be given; otherwise how will we know how to help? We don't do your homework for you here!
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