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Homework Help: Help me please in this homework

  1. Jun 2, 2010 #1
    How much time we can see the lightning if in crosscut electric energy passes 2500 (ampere) with with load 50C

    help me please i'll get high grade if i know this
  2. jcsd
  3. Jun 2, 2010 #2
    As you know electric current is rate of flow of charges. i.e.,
    [tex] i= \frac{dq}{dt}[/tex]
    From this you can find the time required for flow of given charge as you know the value of current.
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