27. Resistors & DC Circuits
Power in Circuits
2:33 minutes
Problem 25c
Textbook Question
Textbook QuestionThe battery for a certain cell phone is rated at 3.70 V. According to the manufacturer it can produce 3.15 * 10^4 J of electrical energy, enough for 5.25 h of operation, before needing to be recharged. Find the average current that this cell phone draws when turned on.
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