A 12.0-V emf automobile battery has a terminal voltage of 16.0 V when being charged by a current of 10.0 A. (a) What is the battery’s internal resistance? (b) What power is dissipatedinside the battery? (c) At what rate (in ºC/min ) will itstemperature increase if its mass is 20.0 kg and it has aspecific heat of 0.300 kcal/kg ⋅ ºC , assuming no heatescapes?

University Physics Volume 2
18th Edition
ISBN:9781938168161
Author:OpenStax
Publisher:OpenStax
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 12.0-V emf automobile battery has a terminal voltage of 16.0 V when being charged by a current of 10.0 A. 
(a) What is the battery’s internal resistance? (b) What power is dissipated
inside the battery? (c) At what rate (in ºC/min ) will its
temperature increase if its mass is 20.0 kg and it has a
specific heat of 0.300 kcal/kg ⋅ ºC , assuming no heat
escapes?

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