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RC circuit, need some help

  1. Mar 3, 2009 #1
    1. The problem statement, all variables and given/known data
    http://img301.imageshack.us/img301/9426/55126286.jpg [Broken]
    The cirucit shown has been connecteed for a long time. the battery ahs an internal resistance of 1 ohm.

    1) Determine the terminal voltage of teh battery

    2) Determine the current in the 4 ohm resistor

    3) What is the charge stored on one of the capacitor plates?

    4)How long will it take for the 10 ohm resistor to consume as much energy from teh circuit as is stored in the capacitor?

    I dont know how to approach this because I dont know what happens when a capacitor is involved.
    Last edited by a moderator: May 4, 2017
  2. jcsd
  3. Mar 3, 2009 #2


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    Homework Helper

    After the circuit has been connected for "a long time" you can ignore the capacitor.
    It will charge up to whatever voltage is across the 6 ohm resistor and then it will draw zero current thereafter.
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