A small battery has internal resistance of 2.00 Q and supplies a digital wristwatch with current of 0.300 mA and output voltage of 2.40 V. Find: a)Power that is lost inside the battery b) Power the wristwatch uses

University Physics Volume 2
18th Edition
ISBN:9781938168161
Author:OpenStax
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Chapter10: Direct-current Circuits
Section: Chapter Questions
Problem 69AP: Consider the circuit below. The battery has an emf of = 30.00 V and an internal resistance of r =...
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A small battery has internal resistance of 2.00 Q and supplies a
digital wristwatch with current of 0.300 mA and output voltage of
2.40 V.
Find: a)Power that is lost inside the battery
b) Power the wristwatch uses
Transcribed Image Text:A small battery has internal resistance of 2.00 Q and supplies a digital wristwatch with current of 0.300 mA and output voltage of 2.40 V. Find: a)Power that is lost inside the battery b) Power the wristwatch uses
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