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4 Capacitors in Parallel

  1. Sep 3, 2010 #1
    I was wondering how long would it take to charge a capacitor at 5volts if there are 4 parallel. This is the details on the Capacitors. 330v 120uF each. So what is the best way to charge them by usb which gives me 5v or using a 9 volt battery and for how long.
  2. jcsd
  3. Sep 4, 2010 #2
    please i really need help on this
  4. Sep 4, 2010 #3
    please people i really need help on this matter it is for my coil gun
  5. Sep 4, 2010 #4


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    If there is no series resistance I would think it would just takes few seconds, or less.
  6. Sep 5, 2010 #5
    It depends on the resistance, both of the wires and the battery/adapter. If you use a Pb battery, I think it takes just fractions of a second
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