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Homework Help: Total charge transferred

  1. Jan 15, 2010 #1
    1. The problem statement, all variables and given/known data
    A 1.5-volt, AAA cell supplies 750 milliamperes
    of current through a flashlight bulb for 5.0 minutes,
    while a 1.5-volt, C cell supplies 750 milliamperes
    of current through the same flashlight
    bulb for 20. minutes. Compared to the total
    charge transferred by the AAA cell through the
    bulb, the total charge transferred by the C cell
    through the bulb is
    (1) half as great (3) the same
    (2) twice as great (4) four times as great

    2. Relevant equations
    W= VIt

    3. The attempt at a solution
    Actually am not absolutely sure which formilar to use.. if I try using the one I provided above then my answer will turn out '3'... bu am still not sure!! i Need assistance!
  2. jcsd
  3. Jan 15, 2010 #2


    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper

    Re: Electricity

    What equation relates charge, current, and time?
  4. Jan 15, 2010 #3
    Re: Electricity

    The definition of current is [tex]I=\frac{dQ}{dt}[/tex]. What is a formilar?
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