electric circuits

Thread Starter

fatima92

Joined Feb 2, 2013
1
hi
can u please help in this question ?
The manufacturer of a 1.5 V D flashlight battery says that the battery will deliver 9 mA for 40 continuous hours. During that time the voltage will drop from 1.5 V to 1.0 V. Assume the drop in voltage is linear with time.

How much energy does the battery deliver in this 40 h interval
 

WBahn

Joined Mar 31, 2012
29,932
What are the relationships between energy, power, voltage, and current?

Do you have any calculus background? It's not needed for this problem, but it will help us know how best to discuss the concepts.
 
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