Recent content by kcombs

  1. kcombs

    Solve RC Circuit Problem: Find Time of Current > 50mA

    I just got t=.184 s, which is the correct answer. Thanks for you help! I was definitely overthinking that!
  2. kcombs

    Solve RC Circuit Problem: Find Time of Current > 50mA

    Actually, I'm not sure it's correct but this is what I did: q=VC i(t)=(V/R)e^(-t/(RC)) which, due to t=0, simplifies to i(t)=V/R When I plugged in numbers I got .117 A
  3. kcombs

    Solve RC Circuit Problem: Find Time of Current > 50mA

    Okay. I can calculate that, but how does voltage come into the picture?
  4. kcombs

    Solve RC Circuit Problem: Find Time of Current > 50mA

    No value is given.
  5. kcombs

    Solve RC Circuit Problem: Find Time of Current > 50mA

    Homework Statement Suppose a 120 micro-farad capacitor from a camera flash unit retains voltage of 210 V when an unwary student removes it from the camera. If the student accidentally touches the two terminals with his hands, and if the resistance of his body between his hands is 1.8...