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Homework Help: Final current through resistors

  1. Oct 25, 2011 #1
    1. The problem statement, all variables and given/known data
    The diagram below depicts an RC-circuit where C = 3.45 F, = 29.0 , = 28.0 , and = 3.00 Volts

    What is the current through immediately after the switch S is closed?
    1.03×10-1 A

    What is the current through immediately after the switch S is closed?
    1.07×10-1 A

    What is the current through the capacitor immediately after the switch S is closed?
    1.07×10-1 A

    What is the current through R1after the switch S has been closed for a very long time? Assume that the battery does not go dead

    What is the current through R2 after the switch S has been closed for a very long time? Assume that the battery does not go dead

    2. Relevant equations
    I= V/R

    3. The attempt at a solution

    So I got the first three questions by applying the formula above for the current. As for the current after a long time, i was so sure that the current through a resistor is 0 after a longtime, but when i enter 0A it says Incorrect. Any help?
     

    Attached Files:

  2. jcsd
  3. Oct 25, 2011 #2

    gneill

    User Avatar

    Staff: Mentor

    What's going to change the voltage across R1 if it has a battery connected directly across it?
     
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