How Does Battery Size Affect Charge Transfer in a Flashlight?

AI Thread Summary
The discussion centers on how battery size impacts charge transfer in flashlights, specifically comparing AAA and C cells. A 1.5-volt AAA cell provides 750 milliamperes for 5 minutes, while a C cell delivers the same current for 20 minutes. The total charge transferred by the AAA cell is calculated using the formula W = VIt, leading to confusion about the correct answer regarding the comparative charge transfer. Participants seek clarification on the relationship between charge, current, and time, with the definition of current being I = dQ/dt. Ultimately, the C cell transfers more charge due to its longer duration of current supply.
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Homework Statement


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


Homework Equations


W= VIt


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!
 
Physics news on Phys.org


What equation relates charge, current, and time?
 


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

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