A flashlight uses batteries that add up to 4.5 V and has a power output of 0.48 W. (a) How much current is drawn from the batteries? _____A (b) What is the effective resistance of the flashlight? _____________Ω

A flashlight uses batteries that add up to 4.5 V and has a power output of 0.48 W. (a) How much current is drawn from the batteries? _A (b) What is the effective resistance of the flashlight? _________Ω

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter17: Electrochemistry And Its Applications

Section17.6: E⁰cell, Gibbs Free Energy, And K⁰

Problem 17.11E

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Question

A flashlight uses batteries that add up to 4.5 V and has a power output of 0.48 W.

(a) How much current is drawn from the batteries?
_____A

(b) What is the effective resistance of the flashlight?
_____________Ω

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